1. Seoul National University Hospital, Radiology, Jongno-gu, Korea (the Republic of), ;
2. Gangneung Asan Hospital, Radiology, Gangneung-si Gangwon-do, Gangneung, Korea (the Republic of), 25440, , ;
3. Withsim Clinic, Radiology, Seongnam, Gyeonggi, Korea (the Republic of), ;
4. Daerim Saint Marys Hospital, Radiology, Yeongdeungpo-gu, Seoul, Korea (the Republic of), ;
5. Seoul National University Hospital, Internal Medicine, Jongno-gu, Seoul, Korea (the Republic of), ;
6. Seoul National University Hospital, Department of Internal Medicine, Jongno-gu, Seoul, Korea (the Republic of), ;
7. Seoul National University Hospital, Radiology, Jongno-gu, Seoul, Korea (the Republic of),
8. Seoul National University College of Medicine, Radiology, Jongno-gu, Seoul, Korea (the Republic of), ;