Majid Maleki has been a Professor in Cardiology since 1963. He has written many papers and books focusing on cardiovascular disease for trainees and cardiologists around the world. In addition, he is the recipient of a number of awards in his field, and he has been a Fellow of the American College of Cardiology, the European Heart Society, and the Asia Pacific Society of Cardiology. Azin Alizadehasl, MD, FACC, FASE, is Professor of Cardiology, Echocardiologist and Director of Cardio-Oncology Research Center and Department at Rajaie Cardiovascular Medical and Research Center, Iran. She is also acknowledged in three editions of Braunwald’s Heart Disease: A Textbook of Cardiovascular Medicine (2011, 2015 and 2018).Majid Haghjoo is a Professor of Cardiovascular Medicine at Iran University of Medical Sciences, where he received a fellowship degree in Cardiac Electrophysiology. He is now Director of the Cardiac Electrophysiology Department at Rajaie Cardiovascular Medical and Research Center, Iran.