1. Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
2. Department of Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea.
3. Department of Thoracic and Cardiovascular Surgery, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
4. Department of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea.