L. M. Galindo-Castañeda, R. Chacón-Salinas, V. Quintero, J. I. Sanchez-Betancourt, and L. Cobos-Marín, “Vaccination of nulliparous gilts against porcine epidemic diarrhoea can result in low neutralising antibody titres and high litter mortality”, Austral J Vet Sci, vol. 53, no. 3, pp. 147–152, Sep. 2021.