MENDOZA ELVIRA, S., C. PIJOAN, ÁLVARO RUÍZ, and M. TORREMORELL. “Transmission of Mycoplasma Hyopneumoniae in a Farm With Solid or Open Pen Partitions Determined by Polymerase Chain Reaction Test”. Veterinaria México OA, vol. 37, no. 002, Oct. 2009, https://veterinariamexico.fmvz.unam.mx/index.php/vet/article/view/162.