Lubbers, B.V., Renter, D.G., Hesse, R.A., Peddireddi, L.G., Zerse, M.T., Cox, E.A. and Meyer, B.D. 2017. Prevalence of respiratory viruses and Mycoplasma bovis in U.S. cattle and variability among herds of origin, production systems and season of year. The Bovine Practitioner. 51, 2 (Jun. 2017), 159–164. DOI:https://doi.org/10.21423/bovine-vol51no2p159-164.