Gustavo Hernandez Vidal, Francisco Mora Valdez, Jorge Kawas Garza, Rafael Ramirez Romero, Jose Antonio Salinas Melendez, Luis Edgar Rodriguez Tovar, Ramiro avalos Ramirez, Victor Riojas Valdes, Elisabeth Davies and Leo B Jeffcott
Journal of Animal and Veterinary Advances 7 ( 4 ): 493 - 501 , 2008