Martinelli M J, Baker G J, Clarkson R B, Eurell J C, Pijanowski G J, Kuriashkin I V
Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana 61801, USA.
Equine Vet J. 1996 Sep;28(5):410-5. doi: 10.1111/j.2042-3306.1996.tb03114.x.