Conflict of interest in peer-reviewed medical journals: the world association of medical editors position on a challenging problem.
Dalla Lana School of Public Health, University of Toronto; Clinical Epidemiology Unit, Sunnybrook Health Sciences Centre, Toronto, Ontario, NADA; Chair, WAME Ethics Committee, USA.
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JAMA. 2003 Jan 22-29;289(4):454-65
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BMJ. 2003 May 31;326(7400):1167-70
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Am J Gastroenterol. 2007 Jun;102(6):1146-50
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