title: A group operant approach to drug dependence in the military that failed: retrospect.
mesh_terms: D000293:Adolescent; D000328:Adult; D001521:Behavior Therapy; D006556:Heroin Dependence / Q000628:therapy*; D006801:Humans; D008297:Male; D008890:Military Psychiatry; D011615:Psychotherapy, Group; D014481:United States