1. Department of Emergency Medicine, Gachon University Gil Medical Center, Incheon 21565, Republic of Korea
2. Department of Emergency Medicine, Gachon University College of Medicine, Incheon 21565, Republic of Korea
3. Department of Emergency Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
4. Department of Emergency Medicine, Cheju Halla General Hospital, Jeju 63127, Republic of Korea
5. Department of Emergency Medicine, Chungbuk National University College of Medicine, Cheongju 28644, Republic of Korea
6. Department of Emergency Medicine, Andong Medical Center, Andong 36743, Republic of Korea
7. Department of Emergency Medicine, Mokpo Hangook Hospital, Mokpo 58643, Republic of Korea
8. Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Republic of Korea
9. Department of Emergency Medicine, Dankook University College of Medicine, Cheonan 31116, Republic of Korea
10. Department of Emergency Medicine, Chuncheon Sacred Heart Hospital, Chuncheon 24253, Republic of Korea
11. Department of Emergency Medicine, Saint Carollo General Hospital, Suncheon 57931, Republic of Korea