Benavides-Varela, Daniel, Jorge Elizondo-Salazar, and Esteban González-Arias. “Immune Status of Dairy Calves in the Northern Plains of Costa Rica. Year II.”. Agronomía Mesoamericana 24, no. 2 (1): 285-291. Accessed August 18, 2019. https://revistas.ucr.ac.cr/index.php/agromeso/article/view/12527.