Samir Morcos Rafla Emeritus professor of cardiology, Alexandria University, Egypt Fellow American College of Cardiology FACC Emeritus Fellow European Society of Cardiology EFESC Fellow Heart Rhythm Society FHRS (American society of arrhythmia) Member European Heart Rhythm Society HER Reviewer in many journals and assessor of abstracts and papers in conferences. Publications in Researchgate and Google Scholar. smrafla@yahoo.com 00201001495577 https://orcid.org/0000-0001-8688-6532