1. Emergency Department, Bach Mai Hospital, 78 Giai Phong Road, Dong Da District, Hanoi, 100000, Viet Nam.
2. Department of Nutrition and Food Safety, Thai Binh University of Medicine and Pharmacy, Thai Binh, Viet Nam.
3. Emergency Department, Cho Ray Hospital, Ho Chi Minh City, Viet Nam.
4. Intensive Care Unit, Cho Ray Hospital, Ho Chi Minh City, Viet Nam.
5. Emergency Department, Hue Central General Hospital, Hue, Viet Nam.
6. Intensive Care Unit, Hue Central General Hospital, Hue, Viet Nam.
7. Department of Emergency and Critical Care Medicine, Hanoi Medical University, Hanoi, Viet Nam.
8. Department of Epidemiology, Thai Binh University of Medicine and Pharmacy, Thai Binh, Viet Nam.
9. Faculty of Public Health, Thai Binh University of Medicine and Pharmacy, Thai Binh, Viet Nam.
10. Department of Emergency Medicine, Emory University School of Medicine, Atlanta, United States of America.
11. Department of Emergency Medicine, Singapore General Hospital, Singapore, Singapore.