title: Epidemiology of multiple drug use with special reference to phencyclidine.
mesh_terms: D002641:Chicago; D004812:Epidemiologic Methods; D006801:Humans; D010622:Phencyclidine / Q000009:adverse effects / Q000032:analysis; D019966:Substance-Related Disorders / Q000453:epidemiology*
chemical_list: D010622:Phencyclidine