title: Analysis of heart rate variability: a useful tool to evaluate autonomic tone in the anesthetized patient?
authors: Alain
authors: A
authors: Deschamps
authors: André
authors: A
authors: Denault
mesh_terms: D000758:Anesthesia; D001341:Autonomic Nervous System / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D016343:Monitoring, Intraoperative