1. National Centre for Epidemiology and Population Health, College of Health and Medicine Australian National University Canberra Australian Capital Territory Australia
2. Department of Communicable Diseases Control National Institute of Hygiene and Epidemiology Hanoi Vietnam
3. Department of Biostatistics and Medical Informatics, School of Preventive Medicine and Public Health Hanoi Medical University Hanoi Vietnam
4. The General Department of Preventive Medicine Ministry of Health Hanoi Vietnam
5. National Institute of Hygiene and Epidemiology Hanoi Vietnam
6. The Kirby Institute University of New South Wales Sydney New South Wales Australia