Gustafsson, Aina, Elisabeth Norin, and Tore Midvedt. “Establishment of Some Microflora-Associated Characteristics in Ex-Germfree Rats and the Developmental Pattern”. Scandinavian Journal of Laboratory Animal Science 23, no. 2 (December 1, 1996). Accessed August 17, 2024. https://ojs.utlib.ee/index.php/SJLAS/article/view/21798.