1. Division of Cardiology, Yonsei Cardiovascular Center, Yonsei University Health System, Seoul, Korea.
2. Dalio Institute of Cardiovascular Imaging, New York-Presbyterian Hospital and the Weill Cornell Medical College, New York, NY, USA.
3. Division of Cardiology, Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea.
4. Division of Cardiology, Heart Stroke & Vascular Institute, Samsung Medical Center, Seoul, Korea.