Quezada, M., Varas, F., Ruiz, A., Islas, A., Diaz, N. and Lecocq, C. 2004. Immunohistochemical detection of PRRS virus antigen in inoculated pigs. Archivos de Medicina Veterinaria. 36, 2 (Dec. 2004), 183–195. DOI:https://doi.org/10.4067/S0301-732X2004000200009.