title: A caution in the interpretation of heart rate variability data.
authors.forename: M S
authors.initials: MS
authors.lastname: Higgins
authors.forename: L A
authors.initials: LA
authors.lastname: Fleisher
mesh_terms: D000773:Anesthesia, Obstetrical; D000775:Anesthesia, Spinal; D002585:Cesarean Section; D003627:Data Interpretation, Statistical; D005260:Female; D006339:Heart Rate; D006801:Humans; D011247:Pregnancy; D015656:Respiratory Mechanics