title: Slowness of movement in Parkinson's disease.
authors.affiliation: University Department of Clinical Neurology, National Hospital for Nervous Diseases, London, England.
authors.forename: C D
authors.initials: CD
authors.lastname: Marsden
mesh_terms: D001921:Brain / Q000503:physiopathology*; D004576:Electromyography; D005071:Evoked Potentials; D006801:Humans; D009132:Muscles / Q000294:innervation*; D010300:Parkinson Disease / Q000503:physiopathology*; D011930:Reaction Time / Q000502:physiology*