Hammer, E. J., J. F. Hawkins, T. J. Divers, and L. Sammons. “Case Report: Nephrectomy for the Treatment of Ectopic Ureter in a Holstein Heifer Calf”. The Bovine Practitioner, vol. 34, no. 2, May 2000, pp. 101-3, doi:10.21423/bovine-vol34no2p101-103.