Affiliation: | 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 |