1. Division of Biopharmacy, Faculty of Pharmaceutical Sciences, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
2. Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand
3. HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
4. Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
5. Department of Obstetrics and Gynecology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
6. Department of Social Medicine, Phayao Hospital, Phayao 56000, Thailand
7. Department of Cytopathology, Phayao Hospital, Phayao 56000, Thailand
8. Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmaceutical Sciences, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand