1. Department of Radiology, Seoul National University Hospital, Seoul, Korea
2. Department of Internal Medicine, Incheon St. Mary’s Hospital, Incheon, Korea
3. Department of Internal Medicine, Chonnam National University Hwasun Hospital, Hwasun, Korea
4. Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
5. Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
6. Department of Nuclear Medicine, CHA Bundang Medical Center, Seongnam, Korea
7. Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Korea
8. Department of Radiology, Yeouido St. Mary’s Hospital, Seoul, Korea
9. Department of Internal Medicine, National Cancer Center, Goyang, Korea
10. Department of Internal Medicine, Seoul St. Mary’s Hospital, Seoul, Korea
11. Department of Internal Medicine, Chung-Ang University Hospital, Seoul, Korea
12. Department of Nuclear Medicine, Kyungpook National University Chilgok Hospital, Daegu, Korea
13. Department of Radiology, Gangneung Asan Hospital, Gangneung, Korea