1. Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
2. Department of Cardiology, Chonnam National University Hospital, Gwang-ju, Republic of Korea
3. Division of Cardiology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Dongtan, Republic of Korea
4. Division of Cardiology, Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
5. Division of Cardiology, Department of Internal Medicine, Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea
6. Department of Preventive Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
7. Division of Cardiology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
8. Division of Cardiology, Department of Internal Medicine, Busan National University Hospital, Busan, Republic of Korea
9. Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
10. Division of Chronic Disease Control, Bureau of Chronic Disease Prevention and Control, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
11. Catholic Research Institute for Intractable Cardiovascular Disease, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea