title: Operationalization of clinical study objectives: a precondition for demonstrating efficacy.
authors: Datenanalyse und Versuchsplanung Gauting/München, Germany.
authors: V W
authors: VW
authors: Rahlfs
mesh_terms: D002986:Clinical Trials as Topic / Q000592:standards*; D005858:Germany; D006801:Humans; D012107:Research Design