Financial conflicts of interest in systematic reviews: associations with results, conclusions, and methodological quality

Financial conflicts of interest in systematic reviews (e.g. funding by drug or device companies or authors' collaboration with such companies) may impact on how the reviews are conducted and reported.To investigate the degree to which financial conflicts of interest related to drug and device companies are associated with results, conclusions, and methodological quality of systematic reviews.We searched PubMed, Embase, and the Cochrane...