title: Parkinson's disease: autonomic neuronopathy with impaired cardiovascular regulation.
authors.forename: Italo
authors.initials: I
authors.lastname: Biaggioni
mesh_terms: D001342:Autonomic Nervous System Diseases / Q000209:etiology* / Q000503:physiopathology*; D002319:Cardiovascular System / Q000503:physiopathology*; D006801:Humans; D007024:Hypotension, Orthostatic / Q000209:etiology; D010300:Parkinson Disease / Q000150:complications*