Churria, Carlos D. Gornatti, et al. ā€œTracheitis in a Broiler Chicken Flock Caused by Dual Infection With Cryptosporidium Spp. (Apicomplexa: Cryptosporiidae) and Non-Hemolytic Ornithobacterium Rhinotrachealeā€. Brazilian Journal of Veterinary Pathology, vol. 5, no. 2, July 2012, pp. 89-93, https://doi.org/10.24070/bjvp.1983-0246.005017.