1. Cardiovascular Center, Division of Cardiology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.
2. Division of Cardiology, Department of Internal Medicine, Asan Medical Center, Seoul, Korea.
3. Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.
4. Department of Internal Medicine, Sungkyunkwan University College of Medicine, Seoul, Korea.
5. Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
6. Division of Cardiology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
7. Norvartis Corporation Sdn. Bhd, Petaling Jaya, Malaysia.
8. Norvartis Korea Limited, Seoul, Korea.