Woo Hyung Kim, MD a, Jeong Ho Park, MD b, c, ⁎ , Joo Jeong, MD c, d, Young Sun Ro, MD, DrPH b, c, Ki Jeong Hong, MD b, c, Kyoung Jun Song, MD, PhD c, e, Sang Do Shin, MD, PhD b, c, Seungsik Hwang, MD, DrPH c, f
a Department of Emergency Medicine, Seoul National University Hospital, Seoul, Republic of Korea
b Department of Emergency Medicine, Seoul National University College of Medicine and Hospital, Seoul, Republic of Korea
c Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, Republic of Korea
d Department of Emergency Medicine, Seoul National University College of Medicine and Bundang Hospital, Gyeonggi, Republic of Korea
e Department of Emergency Medicine, Seoul National University College of Medicine and Boramae Medical Centre, Seoul, Republic of Korea
f Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea