Pereira, Leda Maria Costa, et al. “Influence of Epidermal Growth Factor (EGF) Supplementation at Different Times of in Vitro Maturation of Canine Oocytes”. Brazilian Journal of Veterinary Research and Animal Science, vol. 54, no. 4, Dec. 2017, pp. 388-97, https://doi.org/10.11606/issn.1678-4456.bjvras.2017.133103.