1 Department of Emergency Medicine, New Taipei Municipal Tucheng Hospital, New Taipei City, Taiwan; Department of Emergency Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan.
2 Emergency Department, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan.
3 Department of Emergency Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan.
4 Department of Emergency Medicine, New Taipei Municipal Tucheng Hospital, New Taipei City, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
5 Division of General Surgery, Department of Surgery, New Taipei Municipal Tucheng Hospital, New Taipei City, Taiwan.