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
An aged Belgian horse was admitted to Stange Memorial Clinic. The owner explained that the horse's hoof had been cut by a wire several months before. Examination revealed that the cut had penetrated the coronary band. At the time the animal was admitted the hoof was growing in 2 separate parts divided at the point of injury and exuberant granulations were forming in the cleft between the 2 parts of the hoof.
Howard, R. T.
"Deformity of Hoof Following Injury of the Coronary Band.,"
Iowa State University Veterinarian: Vol. 9
, Article 10.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol9/iss1/10