Journal of Clinical Epidemiology
Volume 59, Issue 9 , Pages 920-925 , September 2006

ANCOVA versus change from baseline had more power in randomized studies and more bias in nonrandomized studies

,Accepted 13 July 2005.

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PII: S0895-4356(06)00081-3

doi: 10.1016/j.jclinepi.2006.02.007

Journal of Clinical Epidemiology
Volume 59, Issue 9 , Pages 920-925 , September 2006

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