title: Heart rate variability in cardiac disease.
authors.forename: S F
authors.initials: SF
authors.lastname: Busch
authors.forename: M J
authors.initials: MJ
authors.lastname: Cowan
authors.forename: T
authors.initials: T
authors.lastname: Simpson
mesh_terms: D000328:Adult; D000368:Aged; D001341:Autonomic Nervous System / Q000503:physiopathology; D006323:Heart Arrest / Q000453:epidemiology* / Q000209:etiology; D006331:Heart Diseases / Q000150:complications / Q000451:nursing* / Q000503:physiopathology; D006339:Heart Rate; D006801:Humans; D008875:Middle Aged; D009730:Nursing Assessment / Q000592:standards*; D012307:Risk Factors