Dr. Osama Khalil, MD, FASE, is a Consultant Cardiologist and Fellow of the American Society of Echocardiography at Prince Sultan Cardiac Center, Saudi Arabia, with more than 25 years of practicing cardiology and cardiovascular medicine. His main area of interest is 2D and 3D transesophageal echocardiography and its application in interventional structural heart diseases.Dr. Ashraf Khalil, MD, PhD, an esteemed authority in Medicine and Chemical Pathology, leverages his extensive expertise gained through a doctorate at the Medical College of Virginia, VCU in Richmond, USA, a fellowship in Tumor Biology at the University of Virginia in Charlottesville, USA, and his current position as the Director of Medical Research at the National Liver Institute in MNFU, Egypt.