title: Baron Constantin von Economo and encephalitis lethargica.
authors.forename: J M
authors.initials: JM
authors.lastname: Pearce
mesh_terms: D004660:Encephalitis / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D012894:Sleep Stages; D012893:Sleep Wake Disorders / Q000266:history