1. Department of Emergency Medicine, Chungnam National University Hospital, Daejeon, Republic of Korea.
2. Department of Emergency Medicine, College of Medicine, Chungnam National University, Daejeon, Republic of Korea.
3. Department of Radiology, College of Medicine, Chungnam National University, Daejeon, Republic of Korea.
4. Department of Orthopaedic Surgery, Chungnam National University School of Medicine, Daejeon, Republic of Korea.
5. Department of Emergency Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea.
6. Department of Emergency Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea.