1. Department of Emergency Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea.
2. Department of Emergency Medicine, Chungnam National University Hospital, Daejeon, Republic of Korea.
3. Department of Emergency Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea.
4. Department of Emergency Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Republic of Korea.
5. Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea.