1. National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
2. Online Research Club, Nagasaki, Japan
3. Hanoi Medical University,1Ton That Tung, Dong Da District, Hanoi, Vietnam
4. Cardiovascular Laboratories, Methodist Hospital, Merrillville, IN, USA
5. Health Department of Nghe An Province, Vietnam
6. Faculty of Medicine, College of Medicine and Pharmacy, Duy Tan University, Da Nang, Vietnam
7. Institute for Research and Training in Medicine, Biology and Pharmacy, Duy Tan University, Da Nang, Vietnam
8. Center for Disease Control and Prevention of Nghe An Province, Vietnam
9. Heart Institute, Ho Chi Minh City, Vietnam
10. School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan