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 January 23, 1967, a 400 lb. Shorthorn heifer was admitted to the Iowa State University Veterinary Clinic with a history of a chronic skin condition. She had been treated previously with many skin medicants and had shown no improvement to any of the forms of therapy.
"Cutaneous Streptothricosis in a Shorthorn Calf,"
Iowa State University Veterinarian: Vol. 29
, Article 6.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol29/iss2/6