1. Department of Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine
2. Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine
3. Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine
4. Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine