Institution: | 1. Department of Internal Medicine, College of Medicine, Chungbuk National University, , South Korea;2. Department of Radiology, College of Medicine, Chungbuk National University, , South Korea;3. Department of Pathology, College of Medicine, Chungbuk National University, , South Korea;4. Department of Urology, College of Medicine, Chungbuk National University, , South Korea |