Patient characteristics associated with retention in a methadone maintenance program.
D000293:Adolescent; D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D003932:Heroin; D006760:Hospitalization; D006801:Humans; D008297:Male; D008691:Methadone / Q000627:therapeutic use*; D008875:Middle Aged; D010552:Personality Assessment; D019966:Substance-Related Disorders / Q000188:drug therapy*
D003932:Heroin; D008691:Methadone