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
A brown and white American Saddle colt, 10 days old, was brought to the Iowa State College Veterinary Clinic on May 28, 1940, with exaggerated contraction of the flexor tendons of both carpi. The legs were flexed at the carpal joints in such a way that when the colt was standing, the carpi were in an abnormal antero-lateral position.
"Contracted Tendons in a Colt,"
Iowa State University Veterinarian: Vol. 3
, Article 2.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol3/iss1/2