title: Drugs: use and abuse.
mesh_terms: D000293:Adolescent; D002665:Child Psychiatry; D004358:Drug Therapy; D006801:Humans; D008297:Male; D008774:Methylphenidate / Q000008:administration & dosage / Q000009:adverse effects; D019966:Substance-Related Disorders
chemical_list: D008774:Methylphenidate