The psychophysics of clinical pain.
D001241:Aspirin / Q000494:pharmacology*; D006801:Humans; D009020:Morphine / Q000494:pharmacology*; D010146:Pain / Q000523:psychology*; D010919:Placebos / Q000494:pharmacology*; D011601:Psychophysics
D010919:Placebos; D009020:Morphine; D001241:Aspirin
ACETYLSALICYLIC ACID/pharmacology; MORPHINE/pharmacology; PAIN/psychology; PLACEBOS/pharmacology