1. Faculty of Public Health, Mahasarakham University, Maha Sarakham 44150, Thailand
2. Faculty of Public Health, Khon Kaen University, Khon Kaen 40000, Thailand
3. Faculty of Medicine, Mahasarakham University, Maha Sarakham 44150, Thailand
4. Laboratory Equipment Centre, Division of Research Facilitation and Dissemination, Mahasarakham University, Maha Sarakham 44150, Thailand
5. Faculty of Science, Khon Kaen University, Khon Kaen 40000, Thailand