Letter: Drug use in a pain rehabilitation center.
D000639:Amitriptyline / Q000008:administration & dosage / Q000627:therapeutic use*; D002908:Chronic Disease; D004338:Drug Combinations; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D010146:Pain / Q000188:drug therapy* / Q000534:rehabilitation; D010672:Phenytoin / Q000008:administration & dosage / Q000627:therapeutic use*; D012910:Snake Venoms / Q000627:therapeutic use*
D004338:Drug Combinations; D012910:Snake Venoms; D000639:Amitriptyline; D010672:Phenytoin; D008691:Methadone