Cynthia Gonzalez-Ruiz, Victor Tenorio-Gutierrez, Francisco Trigo-Tavera, Magda Reyes-Lopez, Nidia Leon-Sicairos, Delfino Godinez-Vargas and Mireya de la Garza-Amaya
Journal of Animal and Veterinary Advances 6 ( 10 ): 1172 - 1182 , 2007