1. Department of Emergency Medicine, Lin-Kou Medical Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
2. Department of Emergency Medicine, Prehospital Care Division, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
3. Department of Emergency Medicine, Taipei Veterans General Hospital, Taoyuan Branch, Taoyuan, Taiwan
4. School of Medicine, National Yang-Ming University, Taipei, Taiwan
5. Institute of Occupational Medicine and Industrial Hygiene, College of Public Health, National Taiwan University, Taipei, Taiwan
6. School of Medicine, International Medical University, Kuala Lumpur, Malaysia
7. College of Medicine, Chang Gung University, Taoyuan, Taiwan
8. Sarawak General Hospital, Kuching, Sarawak, Malaysia