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. 15, 1954, the cadaver of a 3-year-old female St. Bernard was admitted to Stange Memorial Clinic for diagnosis. There was a history of occasional straining and frequent scanty urination. The abdomen was greatly distended and before death the animal was quite depressed. The owner thought the animal was pregnant; however, there was no increase in mammary development. Since the animal was dead on arrival there was no clinical diagnosis made.
Johnson, Keith T.
"Atony of the Urinary Bladder in a St. Bernard,"
Iowa State University Veterinarian: Vol. 16
, Article 7.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol16/iss3/7