title: [Clinical aspect of pain. 13. Action mechanism of opioid analgesics].
authors.forename: M
authors.initials: M
authors.lastname: Nakajima
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D001921:Brain / Q000503:physiopathology; D006801:Humans; D009294:Narcotics / Q000627:therapeutic use*; D010146:Pain / Q000188:drug therapy* / Q000503:physiopathology
chemical_list: D000701:Analgesics, Opioid; D009294:Narcotics