Cognitive impairment in incident, untreated Parkinson disease: the Norwegian ParkWest study - Aarsland, D; Brønnick, K; Larsen, J P; Tysnes, O B; Alves, G (Neurology, 2009)
Keywords: Aged; Cognition Disorders - complications; Cognition Disorders - epidemiology; Cognition Disorders - psychology; Female; Follow-Up Studies; Humans; Incidence; Male; Middle Aged; Neuropsychological Tests; Norway - epidemiology; Parkinson Disease - complications; Parkinson Disease - epidemiology; Parkinson Disease - psychology; Prospective Studies; Norway