1. Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea.
2. Institute of Health Science, Gyeongsang National University School of Medicine, Jinju, Korea.
3. Gyeongnam Regional Cancer Center, Gyeongsang National University School of Medicine, Jinju, Korea.
4. Department of Diagnostic Radiology, Gyeongsang National University School of Medicine, Jinju, Korea.