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 March 24, 1953, a Hereford cow and her one week old heifer calf were admitted to the Stange Memorial Clinic.
McMartin, K. D.
"Tampon Operation for Chronic Prolapsus Vaginae,"
Iowa State University Veterinarian: Vol. 16
, Article 14.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol16/iss2/14