Valladares G., J. et al. 2018. Surveillance of Avian Influenza type A virus in backyard ducks of the provinces of Huaral and Huaura (Lima, Peru). Revista de Investigaciones Veterinarias del Perú. 29, 4 (Nov. 2018), 1493–1499. DOI:https://doi.org/10.15381/rivep.v29i4.15179.