1. Curtin University, Perth, Western Australia, Australia
2. Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
3. Thai Nguyen University of Medicine and Pharmacy, Thai Nguyen, Vietnam
4. National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
5. University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
6. Hai Phong University of Medicine and Pharmacy, Hai Phong, Vietnam