title: Toward a definition of Parkinson's disease.
authors.affiliation: Department of Neurology, University of Medicine, New Brunswick, NJ 08903.
authors.forename: R C
authors.initials: RC
authors.lastname: Duvoisin
authors.forename: L I
authors.initials: LI
authors.lastname: Golbe
mesh_terms: D006801:Humans; D010300:Parkinson Disease; D011795:Surveys and Questionnaires; D009626:Terminology as Topic