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“Entrenched practices and other biases”: unpacking the historical, economic, professional, and social resistance to de-implementation
© Montini and Graham; licensee BioMed Central. 2015
Received: 20 September 2014
Accepted: 22 January 2015
Published: 13 February 2015
In their article on “Evidence-based de-implementation for contradicted, unproven, and aspiring healthcare practices,” Prasad and Ioannidis (IS 9:1, 2014) referred to extra-scientific “entrenched practices and other biases” that hinder evidence-based de-implementation.
Using the case example of the de-implementation of radical mastectomy, we disaggregated “entrenched practices and other biases” and analyzed the historical, economic, professional, and social forces that presented resistance to de-implementation. We found that these extra-scientific factors operated to sustain a commitment to radical mastectomy, even after the evidence slated the procedure for de-implementation, because the factors holding radical mastectomy in place were beyond the control of individual clinicians.
We propose to expand de-implementation theory through the inclusion of extra-scientific factors. If the outcome to which we aim is appropriate and timely de-implementation, social scientific analysis will illuminate the context within which the healthcare practitioner practices and, in doing so, facilitate de-implementation by pointing to avenues that lead to systems change. The implications of our analysis lead us to contend that intervening in the broader context in which clinicians work—the social, political, and economic realms—rather than focusing on healthcare professionals’ behavior, may indeed be a fruitful approach to effect change.
In a perfect world, all medical decisions would be based on evidence. While a lofty ideal to which most clinicians aspire, the context of medical practice makes that goal difficult to realize. On the one hand, there are tensions between clinical scientists and clinical practitioners, problems in the translation of research findings, and difficulties in the timing and sequencing of developing, assessing, adopting, and abandoning clinical practice [1-6]. On the other hand, there are conflicts within science, “evidence wars”  that weaken the power and influence of the evidence on healthcare practices, and much work that can be characterized as cleaning up the evidence base so that it is strong and pure enough to maximize impact (AGREE Project, Cochrane Collaboration, EQUATOR Network, GRADE Working Group). Narrowing the gap between research and practice is not simply a matter of convincing knowledgeable and conscientious practitioners to do the right thing, but rather acknowledging that clinicians’ practice patterns are located within a social structural context so that even the strongest evidence’s influence is mitigated by the conditions of the context in which health care is practiced.
In their article on “Evidence-based de-implementation for contradicted, unproven, and aspiring healthcare practices,” Prasad and Ioannidis call these factors “entrenched practices and other biases” . We propose to disaggregate “entrenched practices and other biases.” Following the lead of Prasad and Ioannidis , we delineate the extra-medical influences of historical, economic, political, and social contexts that should be considered in de-implementation and illustrate using the case example of the de-implementation of radical mastectomy.
Some drugs, devices, and procedures have a long and deep practice history. They are entrenched in organizational infrastructure, and that inertia makes de-implementation of a routinized procedure particularly difficult. The case of radical mastectomy illustrates historical entrenchment.
Radical mastectomy was developed as a treatment for breast disease at the end of the 1800s, when women presented with tumors that were reported to be up to 5 in. in diameter [8,9] that hemorrhaged, were infected by fungus, emitted exhausting discharges, caused much pain, and metastasized . Halsted developed his radical technique—excision of the breast, pectoral (chest) muscles, axillary lymph nodes, and associated skin and subcutaneous tissue—in response to these conditions.
Prior to the late 19th century, cancer was believed to be a blood disorder, not amenable to surgery . That view gave way to the theory of cancer as a local disease. Physicians believed that once the breast succumbed to the disease, it was diseased in toto , making it necessary to remove the complete breast. Next, they theorized that breast cancer spread via the axilla, so surgeons began removing the axillary nodes, whether or not they evidenced disease . Acceptance of the theory of local disease with centrifugal spread encouraged surgeons to operate early, without waiting for the traditional sign of ulceration of the tumor to make the diagnosis of cancer.
In line with the theory of breast cancer as a local disease that spread centrifugally, Halsted  and Meyer  contended that cancer spread from the breast and axilla to the pectoral muscles, and therefore, they too should be removed. Halsted  also believed that cancer could be spread by cutting through diseased tissues, either because cancer cells were liberated or because a contaminated scalpel would infect new sites. This led to the technique of cutting a wide margin of healthy tissue along with the diseased portion of the breast and removing the entire breast and all associated tissue in one piece at once, akin to amputating a limb.
Halsted’s version of mastectomy was distinguished from that of his colleagues by his insistence on the routine performance of the procedure for the removal of the breast exactly as he had defined it. The glands and tissues specified by Halsted were no longer to be removed or not removed at the discretion of the individual surgeon determining their approach on a case-by-case basis; they were to be removed by him on a regular basis. The Halsted approach signaled the standardization of surgical treatment for breast cancer. Radical mastectomy became the unvarying response to every set of symptoms and every medical history (: page 64), and until 1968, the number of radical mastectomies in the USA increased each year.
The historical view of breast cancer also reveals how worldviews, theories championed by specialists, and individual clinicians’ beliefs about causal mechanisms of disease mesh with practice decisions. When breast cancer was thought to be a blood disorder, surgery was not a viable option. When the paradigm shifted to view breast cancer as a local disease, surgery became the primary option and was used to support and justify the Halsted approach. Others have also noted how clinicians’ beliefs about the body, pathophysiology, disease, and treatments can support change (both adoption and de-implementation) and inhibit change when it runs counter to the current worldview . More recently, Gabbay and le May have highlighted the role of mindlines (collectively reinforced, internalized, tacit guidelines) in professional socialization , part of which includes clinicians’ beliefs and worldviews. What is often difficult to tease apart, however, is whether worldviews/beliefs lead to practice change or whether changes in practice catalyze changes in worldviews to justify what they are proposing (sometimes referred to as persuasive knowledge use). In any case, paying attention to the history of the evolution of clinicians’ worldviews and beliefs may provide important insight into the de-implementation process.
Some drugs, devices, and procedures have a complex financial structure that can pit physicians, hospitals, the pharmaceutical industry, and device manufacturers against each other. If de-implementation has financial consequences for a sector that is powerful and profiting, economic entrenchment may be a barrier. The case of radical mastectomy illustrates economic forces of resistance to de-implementation.
In fee-for-service payment systems, the more a provider does, the more profit is generated. Therefore, the de-implementation of radical mastectomy in the USA was up against the desire and need to maintain well-established revenue streams. In 1986, Muñoz and colleagues compared the cost of lumpectomy versus mastectomy for stage I or stage II breast cancer at Long Island Jewish Medical Center . Hospital inpatient and surgeon fees were higher for mastectomy compared to lumpectomy, so one would assume that mastectomy would be the favored option. However, after a lumpectomy, the hospital charged for outpatient radiotherapy, and the services of a physician radiotherapist were also reimbursed. Therefore, when considering who is profiting financially from the radical mastectomy slated for de-implementation, surgeons would lose financially, but hospitals and radiologists would benefit from de-implementation .
In 2000, Palit et al. returned to the question of the costs of breast-conserving surgery versus modified radical mastectomy, in light of the evolving nature of breast cancer treatment, especially the integration of post-mastectomy reconstructive surgery into treatment protocols . They found that women who received breast-conserving surgery had a shorter length of stay and a lower cost of surgery than women who received modified radical mastectomy (with or without reconstruction) . However, the addition of radiotherapy (typically 25 daily sessions) made the total cost of breast-conserving surgery greater than that of modified radical mastectomy alone and 16% greater than that of modified radical mastectomy with reconstruction . Palit et al. found that breast-conserving surgery was underutilized with respect to the number of women eligible and observed that the preference for modified radical mastectomy “appears to be guided primarily by physician attitudes and confusion regarding standard eligibility criteria” (: page 444). Therefore, from an economic perspective, it appears that modified radical mastectomy would be difficult to sustain were it not for the positioning of the surgeon, who performs the biopsy that confirms the diagnosis and tumor staging, and thereby has the benefit of a series of ongoing contacts with the woman patient and therefore the opportunity to exert influence in the choice of breast cancer treatment.
Furthermore, if a government payer or a private insurance company continues to reimburse a drug, device, or procedure—even in the face of an evidence base that indicates the need for de-implementation, most likely there will be little incentive for de-implementation.
The context of politics and specialties
Some drugs, devices, and procedures have a well-established association with a particular practice specialty. Those seeking to promote the de-implementation of a technology must consider who “owns” the drug, device, or procedure and assume that those clinicians would want to keep what they have.
With respect to radical mastectomy, surgeons, who historically sought to distinguish themselves from generalists who could only offer palliative care, were the specialists who offered a treatment. After perfecting the procedure of radical mastectomy, it became the standard treatment for breast cancer. Paradoxically, this routinization of a procedure in order to reduce uncertainty about when to use it resulted in “deskilling” or loss of clinical skills or judgment. Surgeons, in fact, were left with one approach to all permutations of breast cancer. If the surgery failed to stop the disease, treatment failure was attributed to the surgery coming too late or being too conservative . Without diagnostic procedures or alternative therapies, radical mastectomy became entrenched as the only treatment for breast cancer, and surgeons were the specialists who treated it.
Radical mastectomy reached its heyday in the USA during the 1950s, a time when radiation oncology was beginning to take hold in Europe . Advances in diagnostic radiology resulted in mammograms that provided early detection, making it increasingly untenable for surgeons to continue to defend radical mastectomy as the standard treatment when faced with patients who had small tumors and a degree of malignancy that could now be staged by ever more sophisticated pathology analysis. Furthermore, by the late 1970s, surgeons were doing biopsies on an outpatient basis, and women patients were demanding a “two-step” procedure, i.e., separating diagnostic biopsy from breast cancer treatment. Biopsy allowed surgeons to hold their position as the point of first contact in the definitive diagnosis of breast cancer, but once through the gates and armed with a pathology report, women patients with early non-metastasized cancer could seek the treatment options that involved other specialties.
De-implementation does not necessarily occur within the protected confines of research science and clinical practice. Research and practice are situated in a broader social context, and under some circumstances, the timing and sequencing of developing, assessing, adopting, and abandoning drugs, devices, and procedures are subject to outside social forces that affect health services.
The interest in de-implementing radical mastectomy extended beyond biomedical researchers and clinicians. At the same time that an evidence base was developing in the USA, the social movements of the 1970s and 1980s catalyzed the women’s health movement. Movement participants challenged the authoritarian relations within the practice of medicine, insisted on patient participation in medical decision-making, recognized patients’ psychological and social needs, and advocated that the patient’s experience be acknowledged in the doctor-patient encounter. Lay activists encouraged women with breast cancer to seek consultation from radiation and medical oncologists and diagnostic biopsies from surgeons with a reputation for considering the possibility of lesser surgery.
This sentiment was reflected in popular articles indexed in the Readers’ Guide to Periodical Literature  that discussed radical mastectomy. These articles were published in high-circulation journals, such as Readers’ Digest (17,829,000), McCall’s (7,500,000), Good Housekeeping (5,600,000), Newsweek (3,000,000), Consumer Reports (2,150,000), and Glamour (1,946,078) . The intensity of the viewpoints expressed is indicated by these select titles of some articles: “Breast Cancer Debate: Mastectomy study” , “Controversy over breast cancer: Radical mastectomy” , “Right to choose: Mastectomy?” , “Breast cancer: The retreat from radical surgery” , “I said no to my doctors” , and “Breast Cancer: Death to the Radical?” . Furthermore, journalists often interviewed critics of radical mastectomy, such as surgeon George Crile Jr. , noted coordinator of the national randomized controlled trial of breast cancer treatments Bernard Fisher , and coordinator of cross-national trials Gianni Bonadonna .
The reporting on breast cancer in the popular literature indicates that consumers were aware that there was controversy within medicine and that there were treatment alternatives to radical mastectomy. This awareness may have led to some degree of patient pressure on surgeons. In a 1985 television interview on lumpectomy, surgeon Susan Love claimed that, “This treatment option was not developed by doctors and surgeons looking for a better way. It was women who said, ‘I refuse mastectomy. You better find another way to treat me’” . De-implementation came at a time when there was a convergence in clinicians’ and patients’ awareness of the scientific evidence, patients expressing their preferences for an alternative, and when there were other viable treatments to offer instead of radical mastectomy.
While changing social forces strengthened women patients’ role in de-implementing radical mastectomy, recently researchers have noted an upward trend in the rate of mastectomy. Katz et al. reported the relationship between patients’ retrospective reporting of their involvement in breast cancer treatment decision-making and the actual treatment they received . Their survey respondents reported that their concerns regarding the recurrence of disease and the effects of radiation gave rise to their preference for mastectomy over lumpectomy . Gomez et al. found increasing rates of mastectomy in women diagnosed with ductal carcinoma in situ (DCIS) who were white, younger than 50 years at diagnosis, and living in the highest 20% of neighborhoods ranked by socioeconomic status . The authors contended that this group of women, who we would expect to have high decision-making agency, most likely preferred mastectomy because of negative attitudes toward radiotherapy, positive expectations regarding reconstruction, their understanding of their risk of recurrence, and not wanting to undergo tamoxifen therapy for 5 years post-lumpectomy (as recommended by a 2009 practice guideline, tamoxifen therapy was not necessary for women who were treated by mastectomy ). While we laud these researchers for considering the patient’s role in treatment decision-making, we note that their methodology did not employ direct observations of the physician-patient discussions of treatment courses (such as can be found in Routine Complications by socio-linguist Candace West ). Therefore, it is possible that surgeons influence their patients’ knowledge, attitudes, and beliefs regarding the risk of recurrence of breast cancer, the possible effects of radiation, the utilization of tamoxifen, and the promise of plastic surgery reconstruction. Given that a modified radical mastectomy is a quicker and easier surgery than breast-conserving surgery that in the USA commands higher surgeon fees , and is followed by subsequent reconstructive surgery that upper socioeconomic status women would be able to afford, a consideration of financial and professional forces would suggest that surgeons may be offering guidance that favors mastectomy over lumpectomy .
In Canada, where the costs of cancer surgery, radiation, and chemotherapy treatment are covered by provincially funded healthcare plans and provided to all citizens and landed immigrants, surgeons receive the same fee for either breast-conserving surgery or mastectomy (modified radical or otherwise). Plastic surgeons are the sole beneficiaries of a woman’s choice of reconstruction after a modified radical mastectomy. A recent Canadian Institute for Health Information (CIHI) report found that mastectomy rates exceeded 50% for women who would have to travel 1.5 h or longer (each way) to reach a center offering radiotherapy . In this case, it seems plausible to assume that women who live in rural or sub-rural areas are avoiding travel to the approximately 25 daily radiation therapy visits following breast-conserving surgery, rather than expressing a preference for modified radical mastectomy surgery. Thus, the distance a woman has to travel between her home and a cancer center is a care delivery structural feature that can be conceptualized as a social force that sustains the use of modified radical mastectomy.
In sum, evidence did play a role in the case of de-implementing radical mastectomy—but it was not the star of the performance as would be hoped for from an evidence-based medicine perspective.
We share Prasad and Ioannidis’ ideals regarding the evolution of ever-better science to guide implementation and de-implementation . However, there are many cases of factors other than science catalyzing and sustaining misguided implementation and of sound and proven science failing to catalyze de-implementation [27,45-47]. Even when the empirical evidence is strong, scientific arenas may not necessarily be where the implementation/de-implementation decisions are made. Most scientists eschew advocacy, preferring to “let the science speak for itself” . However, how can the science be heard, when there is a great deal of clatter from extra-scientific historical, economic, professional, and social forces in the practice arena?
Traditionally, the approach used to try to keep clinicians up to date has been continuing professional development or continuing medical education that relies on pedagogical theory. This underlying assumption of this approach is that if you educate people, they will be enlightened and will change their actions in response to the knowledge gained. In our experience, telling clinicians that the scientific evidence says what they are currently doing is no longer beneficial may not convince them to de-implement because it may not have been the scientific evidence that established the practice nor sustained its utilization .
In the field of implementation science, the role of psychological theories in understanding and predicting clinician behavior is influential. This should not be surprising given that ultimately individual clinicians (and their patients) make and follow through (or not) on decisions about care. While we acknowledge that these theories are helping to build our understanding of de-implementation, we believe that psychological theories are best utilized in the interpersonal realms of how we recruit, mobilize, involve, and retain clinicians on the teams that work for de-implementation. For example, Bowen and Graham have proposed an Engagement Paradigm in which scientists and clinicians collaborate to create evidence that is pre-designed to be clinically relevant and utilizable . Furthermore, Ong et al. demonstrated that even when trying to precipitate behavior change (a key issue for psychology), psychological theory may offer little assistance . Instead, they analyzed patient practices and strategies in the broader social context to explain why, for whom, and under what circumstances a treatment works .
Disciplines that address de-implementation in medicine and the contexts of clinical practice
What is studied
Some issues of studies
The ways in which culture and society are organized around or influenced by issues of health, health care and related issues
Folk medicine Ethnobotanical knowledge The culture limits of biomedicine
Field research Participant observation
Aggarwal NK, Nicasio AV, DeSilva R, Boiler M, Lewis-Fernández R. “Barriers to implementing the DSM-5 cultural formulation interview: a qualitative study.” Cult Med Psychiatry. 2013 Sep;37(3):505–33 
Science and technology studies
How social, political, and cultural values affect scientific research and technological innovation
Biotechnology Environmental sustainability Information technology
Science citation index analysis Historical analysis Case comparisons
Obstfelder A, Engeseth KH, Wynn R. “Characteristics of successfully implemented telemedical applications.” Implement Sci. 2007 Jul 27;2:25 
Sociology of health and illness
Medical organizations and institutions, the production of knowledge and selection of methods, the actions and interactions of healthcare professionals, and the social or cultural (rather than clinical or bodily) effects of medical practice
Experiences of patients Health disparities Interactions between sick people and healthcare practitioners
Qualitative interviewing Demographic analysis Survey research
Timmermans S, Berg M. “The practice of medical technology.” Sociol Health Ilnn. 2003;25:97–114 
History and philosophy of science
Science, its nature and fundamentals, its origins, and its place in modern politics, culture, and society
How the sciences originated, how they were practiced, how they were developed, and how they were related to their intellectual and social contexts
Archival research Textual analysis Re-enactment of experiments
Richard W,. Wertz and Dorothy C. Wertz. Lying-In: A History of Childbirth in America. 1989, Yale University Press 
There is much to be learned from applying social science approaches to study both resistance to de-implementation (e.g., radical mastectomy  and episiotomy ), as well as appropriate and even rapid de-implementation (e.g., halting the prescribing of rofecoxib and hormone replacement therapy). Contrasting these findings with the results from studies of rapid (both appropriate and inappropriate) implementation (e.g., the rapid adoption of experimental HIV drugs ) will advance our understanding of de-implementation. Furthermore, as we consider the extra-scientific forces that sustain “entrenched practices and other biases” , we need to search literature not indexed in typical medical databases such as PubMed, CINAHL, and EMBASE for socio-historical analyses of de-implementation in health and other fields (see for example, a provocative study of CT scanners in radiology departments published in the management literature ).
In sum, we contend that even when clinicians know what practices are in accord with scientific evidence, they often remain confined by a set of structural forces beyond their control and are not able to make changes. We propose to conceptualize de-implementation as systems change, leading to work for de-implementation at the systems level. We suggest intervening in the broader context in which clinicians work—the social, political, and economic realms—to change systems rather than trying to change individuals. We also argue that the time is right to further develop our de-implementation theories to incorporate the social science that considers historical, economic, professional, and social forces for change.
Work on this paper was supported by a grant from the Canadian Institutes of Health Research FRN# IOP123548.
Many thanks to peer reviewer Professor Tim Rapley for pointing out that, “after the initial (mis) reading of the evidence-based medicine agenda, Guyatt  made the key point that evidence has to encounter specific people in specific (clinical) situations, engaging with patient preferences and values, as well as physicians’ knowledge/reasoning (of just this) patient’s case”.
Further thanks to peer reviewer Dr. Robin Urquhart for alerting us to the recent increase in modified radical mastectomy in relatively advantaged women and directing us to incorporate research findings from Katz et al. , Gomez et al. , and the Canadian Institute for Health Information .
- Bero LA, Grilli R, Grimshaw JM, Harvey E, Oxman AD, Thomson MA. Closing the gap between research and practice: an overview of systematic reviews of interventions to promote the implementation of research findings. The Cochrane Effective Practice and Organization of Care Review Group. BMJ. 1998;317:465–8.View ArticlePubMedPubMed CentralGoogle Scholar
- Gabbay J, le May A. Practice-based evidence for healthcare: clinical mindlines. Abingdon, Oxon: Routledge; 2011.Google Scholar
- Graham ID, Logan J, Harrison MB, Straus SE, Tetroe J, Caswell W, et al. Lost in knowledge translation: time for a map? J Contin Educ Health Prof. 2006;26:13–24.View ArticlePubMedGoogle Scholar
- Grimshaw JM, Eccles MP, Lavis JN, Hill SJ, Squires JE. Knowledge translation of research findings. Implementation science: IS. 2012;7:50.View ArticlePubMedPubMed CentralGoogle Scholar
- Ioannidis JP. Evolution and translation of research findings: from bench to where? PLoS clinical trials. 2006;1:e36.View ArticlePubMedPubMed CentralGoogle Scholar
- Montini T, Slobin K. Tensions between good science and good practice: lagging behind and leapfrogging ahead along the cancer care continuum. Research in the Sociology of Health Care. 1991;9:127–40.Google Scholar
- Prasad V, Ioannidis JP. Evidence-based de-implementation for contradicted, unproven, and aspiring healthcare practices. Implementation science: IS. 2014;9:1.View ArticlePubMedPubMed CentralGoogle Scholar
- Dowd III CN. A study of twenty-nine cases of cancer of the breast submitted to operation. Ann Sug. 1898;27:285–302.Google Scholar
- Halsted WS. I. The results of operations for the cure of cancer of the breast performed at the Johns Hopkins Hospital from June, 1889, to January, 1894. Ann Surg. 1894;20:497–555.View ArticlePubMedPubMed CentralGoogle Scholar
- Gross SW. A clinical study of carcinoma of the breast, and its treatment. Am J Med Sci. 1888;XCV:341–56.View ArticleGoogle Scholar
- Gross SW. The treatment of carcinoma of the breast. Med Surg Rep. 1888;LIX:499–502.Google Scholar
- Fowler GR. Some experiences in the operative treatment of carcinoma of the breast. Brooklyn Med J. 1890;IV:718–27.Google Scholar
- Oliver JC. Cancer of the breast: remarks on pathology and treatment. Med Surg Rep. 1895;LXXIII:125–8.Google Scholar
- Meyer W. An improved method of the radical operation of carcinoma of the breast. Med Rec. 1894;XL:746–9.Google Scholar
- Leopold E. A darker ribbon: breast cancer, women, and their doctors in the twentieth century. Boston, Mass: Beacon; 1999.Google Scholar
- McWhirter R. The value of simple mastectomy and radiotherapy in the treatment of cancer of the breast. Br J Radiol. 1948;21:599–610.View ArticlePubMedGoogle Scholar
- McWhirter R. Simple mastectomy and radiotherapy in the treatment of breast cancer. Br J Radiol. 1955;28:128–39.View ArticlePubMedGoogle Scholar
- Crile G. Simplified treatment of cancer of the breast: early results of a clinical study. Ann Surg. 1961;153:745–58.View ArticlePubMedPubMed CentralGoogle Scholar
- National Institutes of Health Consensus Development Panel. National Institutes of Health Consensus Development Conference statement: treatment of early stage breast cancer. J Natl Cancer Inst. 1992;1992:1–187.Google Scholar
- Atkins H, Hayward JL, Klugman DJ, Wayte AB. Treatment of early breast cancer: a report after ten years of a clinical trial. Br Med J. 1972;2:423–9.View ArticlePubMedPubMed CentralGoogle Scholar
- Jatoi I, Proschan MA. Randomized trials of breast-conserving therapy versus mastectomy for primary breast cancer: a pooled analysis of updated results. Am J Clin Oncol. 2005;28:289–94.View ArticlePubMedGoogle Scholar
- Yang SH, Yang KH, Li YP, Zhang YC, He XD, Song AL, et al. Breast conservation therapy for stage I or stage II breast cancer: a meta-analysis of randomized controlled trials. Ann Oncol. 2008;19:1039–44.View ArticlePubMedGoogle Scholar
- National Cancer Institute. NCI dictionary of cancer terms. Bethesda, Maryland: National Institutes of Health; 2014. http://www.cancer.gov/dictionary.Google Scholar
- Graham I. I believe therefore I practise. Lancet. 1996;347:4–5.View ArticlePubMedGoogle Scholar
- Muñoz E, Shamash F, Friedman M, Teicher I, Wise L. Lumpectomy vs mastectomy. The costs of breast preservation for cancer. Arch Surg. 1986;121:1297–301.View ArticlePubMedGoogle Scholar
- Palit TK, Miltenburg DM, Brunicardi FC. Cost analysis of breast conservation surgery compared with modified radical mastectomy with and without reconstruction. Am J Surg. 2000;179:441–5.View ArticlePubMedGoogle Scholar
- Montini T, Ruzek S. Overturning orthodoxy: the emergence of breast cancer treatment policy. Res Sociol Health Care. 1989;8:3–32.Google Scholar
- Wilson Company HW. Readers’ guide to periodical literature. Minneapolis: H.W. Wilson Co.; 1905.Google Scholar
- Ulrich CF. Ulrich’s international periodicals directory. New York: R.R. Bowker; 1965.Google Scholar
- “Breast cancer debate: mastectomy study.” Newsweek. 121. (November 16, 1970).Google Scholar
- Maisel AQ. “Controversy over breast cancer: radical mastectomy.” Reader’s Digest. 1971;151–156Google Scholar
- Campion R. “Right to choose: mastectomy?” McCalls. 1972;64 + .Google Scholar
- “Breast cancer: the retreat from radical surgery.” Consumer Reports. 1981;24–30.Google Scholar
- Block JL, Goldsmith C. “I said no to my doctors (decision to have mastectomy or radiation therapy),” Good Housekeeping. 1983; vol. March: p. 92 + .Google Scholar
- Silberner J. “Breast cancer: death to the radical? (mastectomy versus lumpectomy).”. Science News. 1985;127(11):165.View ArticleGoogle Scholar
- Snider AJ. “Patient should have a choice: mastectomy decision; views of G. Crile, Jr.” Science Digest. 1973;54–55Google Scholar
- “Breast removal for cancer may soon be outdated (views of Bernard Fisher).” Jet. 1985;69(15):25.Google Scholar
- Weiss R. “New treatment may reduce breast surgeries (chemotherapy followed by lumpectomy and radiation).” Science News. 1989;325–6Google Scholar
- ABC News. (March 13, 1985) Breast cancer: support for lumpectomy. NightlineGoogle Scholar
- Katz SJ, Lantz PM, Janz NK, Fagerlin A, Schwartz K, Liu L, et al. Patient involvement in surgery treatment decisions for breast cancer. J Clin Oncol Off J Am Soc Clin Oncol. 2005;23:5526–33.View ArticleGoogle Scholar
- Gomez SL, Lichtensztajn D, Kurian AW, Telli ML, Chang ET, Keegan TH, et al. Increasing mastectomy rates for early-stage breast cancer? Population-based trends from California. J Clin Oncol. 2010;28:e155–7.View ArticlePubMedPubMed CentralGoogle Scholar
- National Comprehensive Cancer Network. “National Comprehensive Cancer Network Clinical Practice Guidelines in Oncology - breast cancer”. Fort Washington, Pennsylvania; 2009. http://www.nccn.org/professionals/physician_gls/f_guidelines.asp#site. Accessed 15 Dec 2014.
- West C. Routine complications: troubles with talk between doctors and patients. Bloomington: Indiana University Press; 1984.Google Scholar
- Canadian Institute for Health Information. “Breast cancer surgery in Canada 2007–2008 to 2009–2010”. Ottawa, Ontario. https://secure.cihi.ca/estore/productFamily.htm?locale=en&pf=PFC1936. Accessed 15 Dec 2014.
- Epstein S. Impure science: AIDS, activism, and the politics of knowledge. Berkeley: University of California Press; 1996.Google Scholar
- Graham ID. Episiotomy: challenging obstetric interventions. Oxford. Malden, Massachusetts: Blackwell Science; 1997.Google Scholar
- Graham ID, Logan J, Davies B, Nimrod C. Changing the use of electronic fetal monitoring and labor support: a case study of barriers and facilitators. Birth. 2004;31:293–301.View ArticlePubMedGoogle Scholar
- Montini T, Bero LA. Policy makers’ perspectives on tobacco control advocates’ roles in regulation development. Tob Control. 2001;10:218–24.View ArticlePubMedPubMed CentralGoogle Scholar
- Bowen S, Graham ID. Integrated knowledge translation. In: Straus SE, Tetroe J, Graham ID, editors. Knowledge translation in health care: moving from evidence to practice. 2nd ed. Chichester, West Sussex: Wiley & Sons/BMJ/Book; 2013. p. 14–23.View ArticleGoogle Scholar
- Ong BN, Rogers A, Kennedy A, Bower P, Sanders T, Morden A, et al. Behaviour change and social blinkers? The role of sociology in trials of self-management behaviour in chronic conditions. Sociol Health Illn. 2014;36:226–38.View ArticlePubMedGoogle Scholar
- Aggarwal NK, Nicasio AV, DeSilva R, Boiler M, Lewis-Fernandez R. Barriers to implementing the DSM-5 cultural formulation interview: a qualitative study. Cult Med Psychiatry. 2013;37:505–33.View ArticlePubMedPubMed CentralGoogle Scholar
- Obstfelder A, Engeseth KH, Wynn R. Characteristics of successfully implemented telemedical applications. Implementation science: IS. 2007;2:25.View ArticlePubMedPubMed CentralGoogle Scholar
- Timmermans S, Berg M. The practice of medical technology. Sociol Health Illn. 2003;25:97–114.View ArticlePubMedGoogle Scholar
- Wertz RW, Wertz DC. Lying-in: a history of childbirth in America. Expandedth ed. New Haven: Yale University Press; 1989.Google Scholar
- Barley SR. Technology as an occasion for –structuring: evidence from observations of CT scanners and the social-order of radiology departments. Adm Sci Q. 1986;31:78–108.View ArticlePubMedGoogle Scholar
- Guyatt G. Evidence-based medicine: a new approach to teaching the practice of medicine. J Am Med Assoc. 1992;268:2420–5.View ArticleGoogle Scholar
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