Arunvipas, P., J. A. VanLeeuwen, I. R. Doohoo, G. P. Keefe, and K. D. Lissemore. “Clinical Trial to Determine the Productivity Impact of Milk Urea Nitrogen Reports”. The Bovine Practitioner, vol. 40, no. 2, June 2006, pp. 86-94, doi:10.21423/bovine-vol40no2p86-94.