Publication Bias (Letters)
Johnston, John D. and Breimer, Lars H.
LANCET 337(8749): 1102, 4 May 1991
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Stern, Jerome M.; Simes, R. John (1997-09-13)OBJECTIVES: To determine the extent to which publication is influenced by study outcome. DESIGN: A cohort of studies submitted to a hospital ethics committee over 10 years were examined retrospectively by reviewing the ...