Santana, O.I., Cruz Vázquez, C., Medina Esparza, L., Ramos Parra, M., Castellanos Morales, C. and Quezada Gallardo, D. 2010. Neospora caninum: DNA detection in blood during first gestation of naturally infected heifers. Veterinaria México OA. 41, 2 (Jun. 2010).