Heart rate variability: standards of measurement, physiological interpretation and clinical use. Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology Author: Malik Conference/Journal: Circulation Date published: 1996 Mar 1 Other: Volume ID: 93 , Issue ID: 5 , Pages: 1043-65 , Special Notes: Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology , Word Count: 17 PMID: 8598068 https://www.researchgate.net/publication/279548912_Heart_rate_variability_Standards_of_measurement_physiological_interpretation_and_clinical_use