Peek S F, De Lahunta A, Hackett R P
Department of Clinical Sciences, Veterinary Medical Teaching Hospital, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, USA.
Equine Vet J. 1995 Nov;27(6):475-8. doi: 10.1111/j.2042-3306.1995.tb04430.x.