Boot, R, H C W Thuis, and L van de Berg. “Most European SPF ‘pasteurella free’ Guineapig Colonies Are Hacmophilus Spp Antibody Positive”. Scandinavian Journal of Laboratory Animal Science 26, no. 3 (December 1, 1999). Accessed August 17, 2024. https://ojs.utlib.ee/index.php/SJLAS/article/view/21867.