title: The upgoing thumb sign.
authors.forename: V
authors.initials: V
authors.lastname: Hachinski
mesh_terms: D006801:Humans; D009068:Movement; D011712:Pyramidal Tracts / Q000503:physiopathology*; D013933:Thumb / Q000503:physiopathology; D014034:Toes / Q000503:physiopathology