title: The importance of psychological symptoms in Parkinson's disease.
authors.forename: F I
authors.initials: FI
authors.lastname: Caird
mesh_terms: D003072:Cognition Disorders / Q000175:diagnosis / Q000209:etiology; D003154:Community Medicine; D003863:Depression / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D010300:Parkinson Disease / Q000175:diagnosis / Q000523:psychology* / Q000628:therapy; D011788:Quality of Life