1. Department of Internal Medicine, Masan Medical Center, Masan, Korea.
2. Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Gyeongsang National University School of Medicine, Changwon, Korea.
3. Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.
4. Department of Diagnostic Radiology, Gyeongsang National University Changwon Hospital, Gyeongsang National University School of Medicine, Changwon, Korea.
5. Department of Preventive Medicine, Gyeongsang National University School of Medicine, Jinju, Korea.