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 Oct. 3, 1950, two seven-weeks-old Cocker Spaniel pups, litter mates, were admitted to Stange Memorial Clinic. They had the history of being off feed, and listless, with temperatures of 104°F. on the preceding day. Examination revealed their livers to be enlarged and sensitive upon palpation. Tonsillitis was also noted.
Wales, Kenneth J.
"Infectious Canine Hepatitis,"
Iowa State University Veterinarian: Vol. 13
, Article 15.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol13/iss2/15