Group therapy for preadolescent boys.
D001521:Behavior Therapy; D002648:Child; D002653:Child Behavior Disorders / Q000628:therapy*; D006126:Group Processes; D006801:Humans; D007398:Interpersonal Relations; D007857:Leadership; D008297:Male; D010379:Peer Group; D002666:Psychology, Child; D011615:Psychotherapy, Group; D012054:Reinforcement, Psychology; D012572:School Health Services; D012930:Social Dominance; D013663:Teaching