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
Studies using dogs for both experimental and test purposes have made available much information during the past decade concerning the requirements of dogs for proteins, vitamins, fats, minerals and energy. From the list of 13 questions prepared by Dr. Harlan E. Jensen, 3 have been selected as a guide for this discussion.
Morris, Mark L.
"Some Feeding Problems With Hospitalized Dogs,"
Iowa State University Veterinarian: Vol. 9
, Article 3.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol9/iss2/3