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Table 1 Search terms used in the primary literature search.

From: A systematic review of techniques and interventions for improving adherence to inclusion and exclusion criteria during enrolment into randomised controlled trials

Databases Specific search terms used
MEDLINE using Pubmeda; EMBASEb; Cochrane Database of Systematic Reviews Protocol violation
  Recruitment violation
  Enrolment violation
  Recruitment error
  Protocol error
  Enrolment error
  Protocol adherence
  Protocol compliance
  Recruitment adherence
  1. aEach of the terms were crossed (Boolean AND) with the Medline strategy described by Haynes et al. [4] for detecting RCTs. In addition, each was also crossed with the MeSH term 'clinical trials as topic'.
  2. bEach of the terms were crossed (Boolean AND) with the EMBASE strategy described by Wong et al. [5] for detecting RCTs.