title: Neuropsychiatric disorders in early untreated Parkinson's disease.
authors.forename: Sergio E
authors.initials: SE
authors.lastname: Starkstein
mesh_terms: D000978:Antiparkinson Agents / Q000009:adverse effects / Q000627:therapeutic use; D006801:Humans; D001523:Mental Disorders / Q000453:epidemiology / Q000209:etiology*; D009422:Nervous System Diseases / Q000453:epidemiology / Q000209:etiology*; D009483:Neuropsychological Tests; D010300:Parkinson Disease / Q000150:complications* / Q000188:drug therapy / Q000453:epidemiology
chemical_list: D000978:Antiparkinson Agents