TUN, Hein M., and Roberto BRUZZONE. “Early-life antibiotic exposure, gut microbiome, and colonization resistance”. Journal of Health Science and Alternative Medicine 1, no. 3 (December 27, 2019): 1–5. accessed October 4, 2026. https://he01.tci-thaijo.org/index.php/jhealthscialternmed/article/view/227149.