Is the placebo powerless?
Kaptchuk
T J
TJ
D001249:Asthma / Q000628:therapy; D006801:Humans; D059408:Pain Management; D015990:Placebo Effect; D010919:Placebos / Q000494:pharmacology; D016032:Randomized Controlled Trials as Topic; D011957:Receptors, Opioid / Q000187:drug effects
D010919:Placebos; D011957:Receptors, Opioid