DOUBLE BLIND TRIAL OF DEXTROMORAMIDE, METHADONE AND PETHIDINE IN THE TREATMENT OF SEVERE PAIN.
D003916:Dextromoramide; D004311:Double-Blind Method; D006801:Humans; D008614:Meperidine; D008691:Methadone; D010146:Pain; D014116:Toxicology
D008614:Meperidine; D003916:Dextromoramide; D008691:Methadone
DEXTROMORAMIDE; MEPERIDINE; METHADONE; PAIN; TOXICOLOGIC REPORT