title: Motor subtype in Parkinson's disease: Different disorders or different stages of disease?
authors.affiliation: Department of Neurology, Oregon Health & Science University, Portland, Oregon, USA.
authors.forename: John G
authors.initials: JG
authors.lastname: Nutt
mesh_terms: D001921:Brain / Q000000981:diagnostic imaging; D016000:Cluster Analysis; D018450:Disease Progression; D020233:Gait Disorders, Neurologic; D006801:Humans; D009474:Neurons / Q000473:pathology; D010300:Parkinson Disease / Q000145:classification* / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000503:physiopathology; D004856:Postural Balance; D012307:Risk Factors; D013378:Substantia Nigra / Q000473:pathology; D014202:Tremor