Acknowledgements
This research was supported by a grant for the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (grant number: HI15C1535). This research was also supported by SNU-COSMAX TIC (Technology Incubation Center). This work is administered by SOFT Foundry Institute at Seoul National University (0681-20210012). However, the funder played no part in the design and conduct of the study; data collection, management, analysis, and interpretation; preparation, approval, or review of the manuscript; or making a choice to submit the manuscript for publication. The authors would like to thank the Dental Research Institute of Seoul National University for the English language review. The saliva specimens were transferred to the Biobank of Seoul National University Dental Hospital to be stored at the right temperature for preservation. The biospecimens used for this study were provided by the Biobank of Seoul National University Dental Hospital, a member of the Korea Biobank Network.(KBN4_A04).