title: Primary writing tremor and writer's cramp: distinct phenomenology, diverging pathophysiology.
authors.forename: Alberto J
authors.initials: AJ
authors.lastname: Espay
authors.forename: Robert
authors.initials: R
authors.lastname: Chen
mesh_terms: D003937:Diagnosis, Differential; D020821:Dystonic Disorders / Q000175:diagnosis / Q000503:physiopathology*; D006225:Hand / Q000294:innervation / Q000503:physiopathology*; D006801:Humans; D009048:Motor Skills / Q000502:physiology*; D018482:Muscle, Skeletal / Q000294:innervation / Q000503:physiopathology*; D014202:Tremor / Q000175:diagnosis / Q000503:physiopathology*; D014956:Writing