| Affiliation: | (1) Department of Emergency Medicine, Gachon University Gil Hospital, 1198 Guwoldong Namdonggu Incheon, 405-760 Seoul, South Korea;(2) Department of Cardiovascular Surgery, Gachon University Gil Hospital, 1198 Guwoldong Namdonggu Incheon, 405-760 Seoul, South Korea;(3) Department of Emergency Medicine, Sungkunkwan University School of Medicine, Samsung Changwon Hospital, 50 Hapseongdong MansanHoiwongu, 630-520 Changwon, South Korea;(4) Department of Emergency Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, 40 Boramaegil, 156-707 Dongjakgu, Seoul, South Korea |
