Tripp, H. M., Step, D. L., Krehbiel, C. R., Moberly, H. K., & Malayer, J. R. (2013). Evaluation of outcomes in beef cattle comparing preventive health protocols utilizing viral respiratory vaccines. The Bovine Practitioner, 47(1), 54–64. https://doi.org/10.21423/bovine-vol47no1p54-64