Is the placebo powerless?
Kupers
R
R
D000700:Analgesics / Q000627:therapeutic use; D004311:Double-Blind Method; D006801:Humans; D015990:Placebo Effect; D010919:Placebos / Q000627:therapeutic use; D016032:Randomized Controlled Trials as Topic / Q000379:methods; D012107:Research Design
D000700:Analgesics; D010919:Placebos