Single blind placebo in drug research.
Beck
P
P
D002986:Clinical Trials as Topic / Q000379:methods*; D004341:Drug Evaluation / Q000592:standards*; D006805:Human Experimentation; D006801:Humans; D010919:Placebos / Q000592:standards*; D016037:Single-Blind Method; D014481:United States
D010919:Placebos