The double-blind test in the evaluation of the therapeutic effect of drugs.
D001766:Blindness; D004311:Double-Blind Method; D006801:Humans; D004364:Pharmaceutical Preparations; D010919:Placebos; D019987:Persons with Visual Disabilities
D004364:Pharmaceutical Preparations; D010919:Placebos
DRUGS; PLACEBOS
Am J Dig Dis. 1957 Sep;2(9):487-92
13458167
Am J Dig Dis. 1957 Sep;2(9):518-20
13458170