Goran Krstacic received the Ph.D. degree from the University of Zagreb, Croatia, in 2002.,He is currently an Associate Professor of cardiology with the School of Medicine, Josip Juraj Strossmayer University of Osijek, Croatia. He is a Specialist of internal medicine and cardiology and the CEO of the Institute for Cardiovascular Prevention and Rehabilitation, Zagreb. He is the coordinator of the E-Technology of the European Society of Cardiology. His research interests are non-invasive cardiology, heart rate variability, non-linear-dynamics, and chaos theory. He was the Chair of the Working Group on E-Cardiology.,He has authored or co-authored over 100 publications in international journals. (Based on document published on 12 September 2018).