Alcalde, R., M. M. Kogika, V. A. B. Fortunato, L. R. Lopes, P. B. Paiva, and E. L. Durigon. “Canine Distemper Virus: Detection of Viral RNA by Nested RT-PCR in Dogs With Clinical Diagnosis”. Brazilian Journal of Veterinary Research and Animal Science, vol. 50, no. 1, Feb. 2013, pp. 74-76, doi:10.11606/issn.2318-3659.v50i1p74-76.