title: Vagal tone and neurosurgical patients.
authors.forename: J I
authors.initials: JI
authors.lastname: Frank
authors.forename: A H
authors.initials: AH
authors.lastname: Ropper
mesh_terms: D001146:Arrhythmia, Sinus / Q000209:etiology*; D001930:Brain Injuries / Q000601:surgery*; D006321:Heart / Q000294:innervation*; D006801:Humans; D007427:Intracranial Pressure; D017063:Outcome Assessment, Health Care; D014630:Vagus Nerve / Q000502:physiology*