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
In the biological sciences today there are few substances that generate as much interest as prostaglandins. They have found widespread use in veterinary medicine, yet are only approved by the FDA for specific uses in cattle and horses. However, practical applications in the dog and cat have been reported by clinicians and have been evaluated in clinical research projects.
Briles, Edward C. and Evans, Lawrence E.
"Clinical Applications of Prostaglandins in Dogs and Cats,"
Iowa State University Veterinarian: Vol. 44
, Article 5.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol44/iss2/5