Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
On Oct. 11, 1949, a 4-yearold Shorthorn Bull was referred to Stange Memorial Clinic An accompanying letter from the attending veterinarian stated that for several days the animal had shown signs of intermittent colic by kicking at his abdomen for short periods, inappetence, and general depression.
Pfow, Claude and Hacecky, Robin
"Inguinal Hernia In A Shorthorn Bull.,"
Iowa State University Veterinarian: Vol. 12
, Article 12.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol12/iss1/12