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 December seventh a 6-year-old Holstein cow was admitted to Stange Memorial Clinic as a "Hardware" suspect. Physical examination revealed a slightly elevated temperature, absence of pain in the sternal region, increased respiratory sounds over the entire right lung, absence of respiratory sounds in the left lung, and a rapid, weak heartbeat.
"Rib Resection in a Bovine,"
Iowa State University Veterinarian: Vol. 18
, Article 8.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol18/iss2/8