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
As workers in biological and medical sciences have broadened their understanding of the advanced branches of mathematics, many phenomena associated with life have been analyzed, and then defined in the language of mathematics. Numerous occurrences presently defy rigorous mathematical treatment, but eventually will yield to at least some extent to elucidation by analytical means, while others will no doubt forever remain enigmas.
Cholvin, Neal R.
"Higher Mathematics in Today's Medicine,"
Iowa State University Veterinarian: Vol. 23
, Article 2.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol23/iss2/2