1 | Center for Health Research, School of Public Health, Loma Linda University, Phnom Penh, Cambodia |
2 | Department of Epidemiology, Biostatistics, and Population Medicine, School of Public Health, Loma Linda University, Loma Linda, USA |
3 | Department of Global Health, School of Public Health, Loma Linda University, Loma Linda, USA |
4 | World Health Organization/Tobacco Free Initiative, Phnom Penh, Cambodia |
5 | National Institute of Statistics, Ministry of Planning, Phnom Penh, Cambodia |