1. Department of Radiology, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Gangdong-gu, Seoul, Republic of Korea
2. Department of Emergency Medicine, Ewha Womans University Mokdong Hospital, Yangcheon-gu, Seoul, Republic of Korea
3. Department of Radiology, G SAM Hospital, Gunpo-si, Gyeonggi-do, Republic of Korea
4. Department of Orthopedic Surgery, Suncheon Jungang Hospital, Suncheon, Jeollanam-do, Republic of Korea