Villar, D., Larson, D.J., Janke, B.H., Schwartz, K.J., Yaeger, M.J., Carson, T.L. and Blaylock, R. 2003. Case report: Obstructive Urolithiasis in a Feedlot Steer. The Bovine Practitioner. 37, 1 (Feb. 2003), 74–77. DOI:https://doi.org/10.21423/bovine-vol37no1p74-77.