Gnad, D.P., Walz, P.H., Sargeant, J.M. and Chenoweth, P.J. 2005. Prevalence of bovine viral diarrhea virus in young purebred beef bulls in Kansas. The Bovine Practitioner. 39, 2 (Jun. 2005), 101–104. DOI:https://doi.org/10.21423/bovine-vol39no2p101-104.