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 July 20, 1955, a 7-year-old Holstein cow was admitted to the Stange Memorial Clinic at Iowa State College, as a possible "hardware" suspect. The patient was badly bloated at the time of admittance. Rectal examination indicated a marked enlargement of the inguinal lymph nodes and right kidney. The blood count of the animal indicated a marked leucocytosis, 25,680. The differential count revealed 16,900 lymphocytes, 4,700 stabs, 3.800 segments and 200 monocytes.
"Malignant Lymphoma in a Bovine,"
Iowa State University Veterinarian: Vol. 18
, Article 9.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol18/iss1/9