title: Antagonism of acupuncture analgesia in man by the narcotic antagonist naloxone.
mesh_terms: D015670:Acupuncture Therapy; D000698:Analgesia; D004056:Differential Threshold / Q000187:drug effects; D006801:Humans; D009270:Naloxone / Q000494:pharmacology*; D010146:Pain / Q000503:physiopathology
chemical_list: D009270:Naloxone