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
A nine year-old castrated male Old English Sheepdog was referred to the Iowa State University Veterinary Teaching Hospital with a history of intermittent lameness of the left rear leg. Physical examination revealed soft tissue swelling of the left tarsus.
Carlson, Thomas A. and Riedesel, Elizabeth A.
"What's Your Radiographic Diagnosis?,"
Iowa State University Veterinarian: Vol. 49
, Article 7.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol49/iss1/7