1. Yonsei Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea.
2. Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea.
3. Graduate Program in Science for Aging, Yonsei University, Seoul, Korea.
4. Cardiovascular Product Evaluation Center, Yonsei University College of Medicine, Seoul, Korea.
5. Division of Cardiology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea.
6. Department of Cardiology, Ewha Womans University Seoul Hospital, Seoul, Korea.
7. Division of Cardiology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
8. Division of Endocrinology and Metabolism, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.