| Affiliation: | 1. Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea;2. the Medical Research Collaborating Centre, Seoul National University Bundang Hospital, Seongnam, Korea;3. Division of Cardiology, Yonsei University Wonju Severance Christian Hospital, Wonju, Korea;4. Division of Cardiology, Yonsei University Severance Hospital, Seoul, Korea;5. Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Centre, Seoul, Korea;6. Department of Internal Medicine, The Catholic University of Korea, Seoul St Mary's Hospital, Seoul, Korea;7. Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju, Korea;8. Department of Internal Medicine, Sungkyunkwan University College of Medicine, Samsung Medical Centre, Seoul, Korea;9. Department of Internal Medicine, Kyungpook National University College of Medicine, Daegu, Korea;10. Department of Internal Medicine, Konkuk University Medical Centre, Seoul, Korea;11. Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea |
