Data withholding in academic genetics: evidence from a national survey. Campbell EG, Gokhale M. EG Campbell, BR Clarridge, M Gokhale, L Birenbaum… - jama, 2002 - jamanetwork.com GSID: VWgjgvz9UhwJ
Scope and impact of financial conflicts of interest in biomedical research: a systematic review. Bekelman JE, Gross CP. JE Bekelman, Y Li, CP Gross - Jama, 2003 - jamanetwork.com GSID: YmZY1flad7cJ
Systematic reviews in health care: meta-analysis in context. Egger M, Smith GD, Altman D. M Egger, GD Smith, D Altman - 2008 - books.google.com GSID: hfEPI4KA3g4J