title: The 'rap' house and volunteers: helpful or harmful?
mesh_terms: D000293:Adolescent; D000328:Adult; D001291:Attitude of Health Personnel; D003156:Community Mental Health Services; D003376:Counseling; D003419:Crisis Intervention; D005069:Evaluation Studies as Topic; D006801:Humans; D019966:Substance-Related Disorders / Q000517:prevention & control / Q000628:therapy*; D014838:Volunteers