• Graduated from School of Medicine, Seoul National University
• M.Med. & M.D. in Thoracic and Cardiovascular Surgery, Seoul National University
• Professor & Director of Cardiovascular Center, Konkuk University Medical Center
• Vice Chairman, the Korea Society for Transplantation
• Director, the Korean Society for Vascular Surgery
• Licensed U.S. physicians & Member of American Association of Thoracic Surgery
• Served as Executive Director, the Korean Society for Thoracic & Cardiovascular Surgery
• Served as Professor of Thoracic and Cardiovascular Surgery, Seoul Asan Hospital
• Served as Professor & Chief of Thoracic and Cardiovascular Surgery, Seoul Central Hospital
• Served as Assistant Clinical Professor, Baylor University Hospital in USA
• Served as Fellow, Oregon University Hospital in USA