title: Placebos and placebo effects in medicine: historical overview.
authors.affiliation: Department of Clinical Epidemiology and Biostatistics, Academic Medical Centre-University of Amsterdam, The Netherlands. AJMdeCraen@epi.azl.nl
authors.forename: A J
authors.initials: AJ
authors.lastname: de Craen
authors.forename: T J
authors.initials: TJ
authors.lastname: Kaptchuk
authors.forename: J G
authors.initials: JG
authors.lastname: Tijssen
authors.forename: J
authors.initials: J
authors.lastname: Kleijnen
mesh_terms: D015987:Effect Modifier, Epidemiologic; D013502:General Surgery / Q000266:history; D049671:History, 18th Century; D049673:History, 20th Century; D049691:History, Medieval; D006801:Humans; D015990:Placebo Effect; D010919:Placebos / Q000266:history; D012106:Research / Q000266:history; D012107:Research Design
chemical_list: D010919:Placebos