Comparison of protocols and registry entries to published reports for randomised controlled trials.
BACKGROUND: Publication of complete trial results is essential if people are to be able to make well-informed decisions about health care. Selective reporting of randomised controlled trials (RCTs) is a common problem. OBJECTIVES: To systematically review studies of cohorts of RCTs to compare the content of trial reports with the information contained in their protocols, or entries in a trial registry. SEARCH STRATEGY: We conducted electronic searches in Ovid MEDLINE (1950 to August 2010); O...Expand abstract
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