1. Department of Radiology; Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University; 149 Sangil-dong Gangdong-gu Seoul 134-727 Republic of Korea
2. Department of Pathology; Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University; 149 Sangil-dong Gangdong-gu Seoul 134-727 Republic of Korea
3. Department of Surgery; Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University; 149 Sangil-dong Gangdong-gu Seoul 134-727 Republic of Korea