MARTÍNEZ BARROSO, G.; WILLIAMS, J. D. J.; ALZINA LÓPEZ, A. Identification of risk factors associated with exposure to porcine respiratory and reproductive syndrome virus in pig farms from the state of Yucatan, Mexico. Veterinaria México OA, [S. l.], v. 33, n. 004, 2009. DOI: 10.21753/vmoa.33.004.78. Disponível em: https://veterinariamexico.fmvz.unam.mx/index.php/vet/article/view/78. Acesso em: 20 apr. 2025.