1. Division of Cardiology, Department of Internal Medicine, Hanyang University Colloge of Medicine, Seoul, Korea.
2. CG Bio Co. Ltd., Seoul, Korea.
3. Division of Cardiology, Cardiovascular Center, Korea University Anam Hospital, Seoul, Korea.
4. Department of Cardiology, Yonsei University Wonju Severance Christian Hospital, Wonju, Korea.
5. Department of Internal Medicine and Cardiovascular Center, Seoul National University College of Medicine, Seoul, Korea.