title: Number-needed-to-treat and placebo-controlled trials.
authors.affiliation: Department of Clinical Epidemiology & Biostatistics, Academic Medical Center, University of Amsterdam, The Netherlands.
authors.forename: A J
authors.initials: AJ
authors.lastname: de Craen
authors.forename: A J
authors.initials: AJ
authors.lastname: Vickers
authors.forename: J G
authors.initials: JG
authors.lastname: Tijssen
authors.forename: J
authors.initials: J
authors.lastname: Kleijnen
mesh_terms: D006801:Humans; D016017:Odds Ratio; D010919:Placebos; D016032:Randomized Controlled Trials as Topic / Q000379:methods* / Q000706:statistics & numerical data*; D018401:Sample Size
chemical_list: D010919:Placebos