1. Catholic Research Institute for Intractable Cardiovascular Disease College of Medicine The Catholic University of Korea Seoul Republic of Korea
2. Division of cardiology Department of Internal Medicine Eunpyeong St. Mary's Hospital College of Medicine The Catholic University of Korea Seoul Republic of Korea
3. Division of cardiology Department of Internal Medicine Bucheon St. Mary's Hospital College of Medicine The Catholic University of Korea Bucheon Republic of Korea
4. R&D Center Boryung Co., Ltd. Seoul Republic of Korea