Marc Leon (also known as Hongliang Liang), M.D., Ph.D., previously served as Chief Surgeon, Associate Professor of Cardiovascular Surgery, and Director of the Division of Coronary Artery Surgery at Xijing Hospital in Xi'an, China. Currently, he is a Clinical Assistant Professor in the Department of Cardiothoracic Surgery at Stanford Hospital. Dr. Leon is a surgeon member of the Society of Thoracic Surgeons (STS), the International Society of Heart and Lung Transplantation (ISHLT), and the Chinese American Academy of Cardiology (CAAC). His clinical and research expertise includes the surgical management of cardiopulmonary failure, heart valve disease, and ischemic heart disease, along with the application of stem cell therapy for myocardial infarction. Additionally, Dr. Leon is actively engaged in exploring the application of artificial intelligence in the field of cardiovascular diseases.