title: The use of diazepam and of cocaine in combination with other drugs by Los Angeles County probationers.
mesh_terms: D000328:Adult; D003042:Cocaine / Q000652:urine; D003975:Diazepam / Q000652:urine; D006801:Humans; D013287:Illicit Drugs; D008297:Male; D011329:Prisoners / Q000523:psychology*; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000652:urine
chemical_list: D013287:Illicit Drugs; D003042:Cocaine; D003975:Diazepam