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 Feb. 2, 1952, a one-and-a-half year-old female Dalmation was admitted to the Stange Memorial Clinic. The case was referred to the clinic by the local veterinarian with a history of a prolapsed rectum.
Cook, Everett L.
"Prolapse of the Rectum in a Dog,"
Iowa State University Veterinarian: Vol. 14
, Article 14.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol14/iss3/14