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Table 2 Two high performance Methods filters for questions of therapy

From: Evaluating the impact of MEDLINE filters on evidence retrieval: study protocol

Filter Form PubMed Search Query
Broad ((clinical[Title/Abstract] AND trial[Title/Abstract]) OR clinical trials[MeSH Terms] OR clinical trial[Publication Type] OR random*[Title/Abstract] OR random allocation[MeSH Terms] OR therapeutic use[MeSH Subheading])
Narrow (randomized controlled trial[Publication Type] OR (randomized[Title/Abstract] AND controlled[Title/Abstract] AND trial[Title/Abstract]))
  1. PubMed fields: '*' = truncation character, [MeSH Terms] = exploded and focused MeSH term