Empirical evidence of bias in treatment effect estimates in controlled trials with different interventions and outcomes: meta-epidemiological study
L Wood, M Egger, LL Gluud, KF Schulz, P Juni, DG Altman, C Gluud, RM Martin, AJG Wood, JAC Sterne
British Medical Journal, 3rd March 2008
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Tuesday, 4 March 2008
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