1. School of Medicine, Chung Shan Medical University, Taichung, Taiwan
2. Division of Medical Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
3. Department of Emergency Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
4. Department of Emergency Medicine, E-Da Dachang Hospital, I-Shou University, Kaohsiung, Taiwan
5. School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung, Taiwan