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. 6, a 1-year-old bitch was admitted to Stange Memorial Clinic with a history that included injury by .an automobile. Symptoms shown by the patient consisted of rapid abdominal respiratory movements that were aggravated by tilting the animal up on its front legs and were diminished by tilting the animal on its rear legs. The short stifled breathing was accelerated and a cough was induced by exercise. A dorso-ventral x-ray revealed portions of the liver and loops of the intestine lying in the thorax and a tear in the right side of the diaphragmatic muscle.
Lyon, Donald G.
Iowa State University Veterinarian: Vol. 18
, Article 10.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol18/iss3/10