title: Heart rate variability 1989. An update.
authors.affiliation: Department of Medicine, Northwestern University Medical School, Chicago, IL 60611.
authors.forename: D
authors.initials: D
authors.lastname: Van Hoogenhuyze
authors.forename: G J
authors.initials: GJ
authors.lastname: Martin
authors.forename: J S
authors.initials: JS
authors.lastname: Weiss
authors.forename: J
authors.initials: J
authors.lastname: Schaad
authors.forename: D
authors.initials: D
authors.lastname: Fintel
authors.forename: D H
authors.initials: DH
authors.lastname: Singer
mesh_terms: D000328:Adult; D000368:Aged; D003645:Death, Sudden; D015716:Electrocardiography, Ambulatory; D006331:Heart Diseases / Q000401:mortality / Q000503:physiopathology; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies