1. Graduate School; Khon Kaen University, Khon Kaen, Thailand, and Department of Family and Community Dentistry; Faculty of Dentistry; Chiang Mai University; Chiang Mai Thailand
2. Department of Community Dentistry; Faculty of Dentistry; Khon Kaen University; Khon Kaen Thailand
3. Chronic Inflammatory and Systemic Disease Associated with Oral Health Research Group; Khon Kaen University; Khon Kaen Thailand
4. Oral Health Science; School of Dentistry; University of Washington; Seattle WA USA
5. Department of Paediatric Dentistry; Faculty of Dentistry; Khon Kaen University; Khon Kaen Thailand
6. College of Medicine and Public Health; Ubon Ratchathani University; Ubon Ratchathani Thailand