title: The riddle of psychiatric disorders in Parkinson disease:  from phenomenology to treatment.
authors.forename: Sergio E
authors.initials: SE
authors.lastname: Starkstein
mesh_terms: D000342:Affective Symptoms / Q000209:etiology; D057565:Apathy; D006801:Humans; D010300:Parkinson Disease / Q000150:complications* / Q000523:psychology*; D011618:Psychotic Disorders / Q000209:etiology* / Q000628:therapy*