1. Division of Cardiology, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Gyeongsang National University, Jinju, Korea.
2. Institute of Health Science, Gyeongsang National University, Jinju, Korea.
3. Departments of Internal Medicine, and Radiology, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Gyeongsang National University, Jinju, Korea.