1. Division of Cardiology, Department of Internal Medicine, Kosin University Gospel Hospital, Busan, Korea.
2. Division of Cardiology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea.
3. Division of Cardiology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
4. Division of Cardiology, Department of Medicine, Samsung Medical Center, Seoul, Korea.
5. Division of Cardiology, Department of Internal Medicine, Hanlym University, Seoul, Korea.
6. Division of Cardiovascular and Rare Disease, Center for Biomedical Science, Korea National Institute of Health, Cheongju, Korea.
7. Division of Cardiology, Department of Internal Medicine, Seoul National Bundang Hospital, Seongnam, Korea.