title: A follow-up of drug clinic attenders.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D010044:Outpatient Clinics, Hospital; D012737:Sex Factors; D019966:Substance-Related Disorders / Q000628:therapy*