
(참고자료)
-'Is the Romantic–Sexual Kiss a Near Human Universal?', William R. Jankowiak, Shelly L. Volsche, and Justin R. Garcia, AMERICAN ANTHROPOLOGIST(2015).
-'Neanderthal behaviour, diet, and disease inferred from ancient DNA in dental calculus', Laura S. Weyrich et al., nautre(2017).
-'The ancient history of kissing', Troels Pank Arbøll and Sophie Lund Rasmussen, Science(2023).
-'Methanobrevibacter oralis: a comprehensive review', Virginie Pilliol et al., J Oral Microbiol(2024).
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