1. Department of Radiology; Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University; 892 Dongnam-ro, Gangdong-gu, Seoul 05278 Republic of Korea
2. Department of Biomedical Engineering; Graduate School, Kyung Hee University; 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701 Republic of Korea
3. Department of Medicine; Graduate School, Kyung Hee University; 26 Kyunghee-daero, Dongdaemun-gu, Seoul 130-701 Republic of Korea
4. Division of Endocrinology and Metabolism, Department of Medicine; Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University; 892 Dongnam-ro, Gangdong-gu, Seoul 05278 Republic of Korea
5. Department of Pathology; Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University; 892 Dongnam-ro, Gangdong-gu, Seoul 05278 Republic of Korea
6. Department of Preventive Medicine, College of Medicine; Kyung Hee University; 26 Kyunghee-daero, Dongdaemun-gu, Seoul 130-701 Republic of Korea