1. Graduate School; Khon Kean University; Khon Kaen Thailand
2. Faculty of Nursing; Khon Kean University; Khon Kaen Thailand
3. School of Public Health; University of South Carolina; Columbia SC USA
4. Faculty of Dentistry; Khon Kean University; Khon Kaen Thailand
5. Chronic Inflammatory and Systemic Diseases Associated with Oral Health Research Group; Khon Kean University; Khon Kaen Thailand