Three alternatives to the double-blind.
D001291:Attitude of Health Personnel; D002986:Clinical Trials as Topic; D004992:Ethics, Medical; D006805:Human Experimentation; D006801:Humans; D001523:Mental Disorders / Q000188:drug therapy; D008722:Methods; D010919:Placebos; D011594:Psychometrics; D011600:Psychopharmacology / Q000592:standards*; D012106:Research; D012718:Set, Psychology
D010919:Placebos