title: [R-R interval variations in Parkinson's disease and vascular parkinsonism].
mesh_terms: D000368:Aged; D001342:Autonomic Nervous System Diseases / Q000150:complications*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D010300:Parkinson Disease / Q000150:complications / Q000175:diagnosis*