Bias due to changes in specified outcomes during the systematic review process

Background Adding, omitting or changing outcomes after a systematic review protocol is published can result in bias because it increases the potential for unacknowledged or post hoc revisions of the planned analyses. The main objective of this study was to look for discrepancies between primary outc...

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מידע ביבליוגרפי
Main Authors: Kirkham, J, Altman, D, Williamson, P
פורמט: Journal article
שפה:English
יצא לאור: Public Library of Science 2010

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