We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleInsights from the study of heart rate variability.AuthorsStein PK; Kleiger REPublicationAnnual review of medicine, 1999, Vol 50, p249ISSN0066-4219Publication typearticleDOI10.1146/annurev.med.50.1.249