g Liao, MD, PhD, Cees A. Swenne, PhD, and Evert G. Schouten, MD, PhD, "Clinical Investigation and Reports: Low Heart Rate Variability in a 2-Minute Rhythm Strip Predicts Risk of Coronary Heart Disease and Mortality from Several Causes: The ARIC Study," Circulation 102 (2000): 1239-1244. 36 Robert M. Carney