1. Department of Emergency Medicine; University of Ulsan College of Medicine, Ulsan University Hospital; Ulsan Korea
2. Department of Emergency Medicine, College of Medicine; Chosun University; Gwangju Korea
3. Department of Emergency Medicine, School of Medicine; Hallym University; Seoul Korea
4. Department of Emergency Medicine; Yonsei University College of Medicine; Seoul Korea
5. Department of Emergency Medicine; Ajou University School of Medicine; Suwon Korea
6. Department of Emergency Medicine; Ewha Womans University, School of Medicine; Seoul Korea