title: Trauma as an etiology of parkinsonism: opinions in the nineteenth century.
authors.forename: J M
authors.initials: JM
authors.lastname: Keppel Hesselink
mesh_terms: D049672:History, 19th Century; D010300:Parkinson Disease / Q000209:etiology* / Q000266:history; D013315:Stress, Psychological / Q000150:complications*