title: Apathy does not equal depression in Parkinson disease: why we should care.
authors.forename: Irene Hegeman
authors.initials: IH
authors.lastname: Richard
mesh_terms: D000342:Affective Symptoms; D003863:Depression; D006801:Humans; D010300:Parkinson Disease / Q000523:psychology*; D011569:Psychiatric Status Rating Scales