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
The morning of Feb. 5, 1957, the ambulatory clinician of LS.C. Division of Veterinary Medicine answered a call an a down cow.
Hall, Rodney E.
"Displaced Abomasum in the Bovine,"
Iowa State University Veterinarian: Vol. 19
, Article 8.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol19/iss3/8