On April 1, 1957, a 7-year old male shepherd dog was admitted to Stange Memorial Clinic with a history of a tumor in the perineal region.
"Hyperplastic Prostate Gland in Perineal Hernia of Dog,"
Iowa State University Veterinarian: Vol. 19
, Article 13.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol19/iss3/13