title: Sympathovagal balance from heart rate variability: an obituary.
authors.forename: James A J
authors.initials: JA
authors.lastname: Heathers
mesh_terms: D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D001341:Autonomic Nervous System / Q000503:physiopathology*; D017704:Baroreflex / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans