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