JAMA. 1999 Sep 22-29; 282(12): 1112
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Olson, Carin M.; Rennie, Drummond; Cook, Deborah; Dickersin, Kay; Flanagin, Annette; Hogan, Joseph W.; Zhu, Qi; Reiling, Jennifer; Pace, Brian (2002-06-05)CONTEXT: Studies with positive results are more likely to be published than studies with negative results (publication bias). One reason this occurs is that authors are less likely to submit manuscripts reporting negative ...