title: Some historical aspects of the drug-free therapeutic community.
mesh_terms: D000436:Alcoholics Anonymous / Q000266:history; D000437:Alcoholism / Q000628:therapy*; D001521:Behavior Therapy / Q000379:methods; D002835:Christianity; D049673:History, 20th Century; D006801:Humans; D010414:Pennsylvania; D011057:Politics; D012069:Religion and Psychology; D019966:Substance-Related Disorders / Q000628:therapy*; D013808:Therapeutic Community / Q000266:history*