Reference values of heart rate variability.

Axel Bauer, MD, A. John Camm, MD, Sergio Cerutti, PhD, Przemyslaw Guzik, MD, Heikki Huikuri, MD, Federico Lombardi, MD, Marek Malik, PhD, MD, Chung-Kang Peng, PhD, Alberto Porta, PhD, Roberto Sassi, PhD, Georg Schmidt, MD, Peter J. Schwartz, MD, Phyllis K. Stein, PhD, Yoshiharu Yamamoto, PhD From the Munich University Clinic and German Center for Cardiovascular Research, Munich, Germany, St. George’s and Imperial College, London, England, Politecnico di Milano, Milan, Italy, Poznan University of Medical Sciences, Poznan, Poland, University Hospital and University of Oulu, Oulu, Finland, Università degli Studi di Milano, Milan, Italy, Imperial College, London, England, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, University of Milan and IRCCS Policlinico San Donato, Milan, Italy, Università degli Studi di Milano, Milan, Italy, Technische Universität München and German Center for Cardiovascular Research, Munich, Germany, IRCCS Istituto Auxologico Italiano, Milan, Italy, Washington University School of Medicine, St. Louis, Missouri, and Graduate School of Education, The University of Tokyo, Tokyo, Japan.