title: The use of PCP in combination with other drugs by Los Angeles County probationers.
mesh_terms: D002140:California; D006306:Health Surveys; D006801:Humans; D013287:Illicit Drugs; D004364:Pharmaceutical Preparations; D010622:Phencyclidine; D019966:Substance-Related Disorders / Q000453:epidemiology*
chemical_list: D013287:Illicit Drugs; D004364:Pharmaceutical Preparations; D010622:Phencyclidine