Meyers-Wallen V N, Hurtgen J, Schlafer D, Tulleners E, Cleland W R, Ruth G R, Acland G M
J.A. Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, USA.
Equine Vet J. 1997 Sep;29(5):404-8. doi: 10.1111/j.2042-3306.1997.tb03148.x.