1. Department of Emergency Medicine, Cathay General Hospital, Taipei 106438, Taiwan
2. Department of Emergency Medicine, Sijhih Cathay General Hospital, New Taipei City 221037, Taiwan
3. School of Medicine, Fu Jen Catholic University, Taipei 242062, Taiwan
4. Department of Emergency Medicine, Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 231016, Taiwan
5. School of Medicine, Tzu Chi University, Hualien 970374, Taiwan
6. School of Medicine, National Tsing Hua University, Hsinchu 300044, Taiwan
7. Department of Education, Cathay General Hospital, Taipei 106438, Taiwan