Placebo in clinical trials.
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Ito
D002986:Clinical Trials as Topic / Q000266:history / Q000379:methods*; D049671:History, 18th Century; D006801:Humans; D015990:Placebo Effect; D010919:Placebos / Q000008:administration & dosage* / Q000266:history; D012107:Research Design
D010919:Placebos