1. Department of Emergency Medicine Chi Mei Medical Center Tainan Taiwan
2. Department of Information Systems Chi Mei Medical Center Tainan Taiwan
3. Department of Medical Research Chi Mei Medical Center Tainan Taiwan
4. School of Medicine, College of Medicine National Sun Yat‐Sen University Kaohsiung Taiwan
5. Department of Emergency Medicine Taipei Medical University Taipei Taiwan
6. Division of Cardiology, Department of Internal Medicine Chi Mei Medical Center Tainan Taiwan
7. Department of Emergency Medicine Kaohsiung Medical University Kaohsiung Taiwan
8. Department of Environmental and Occupational Health, College of Medicine National Cheng Kung University Tainan Taiwan