Document Type : Research Articles
1 Department of Physiology, HPV and EBV and Carcinogenesis Research Group, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
2 Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand.
3 Department of Environmental Health, Faculty of Public Health, Khon Kaen University, Khon Kaen, Thailand.
4 Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan.