title: Reduced autonomic activity in Parkinson disease patients.
authors.forename: Ernest H
authors.initials: EH
authors.lastname: Friedman
mesh_terms: D001341:Autonomic Nervous System / Q000503:physiopathology*; D006801:Humans; D010300:Parkinson Disease / Q000503:physiopathology*; D012307:Risk Factors; D014652:Vascular Diseases / Q000517:prevention & control*