title: Publication bias: the problem and some suggestions.
authors: Frederick P
authors: FP
authors: Rivara
authors: Peter
authors: P
authors: Cummings
mesh_terms: D000328:Adult; D002648:Child; D016001:Confidence Intervals; D006801:Humans; D017594:Publication Bias; D016032:Randomized Controlled Trials as Topic; D012042:Registries