Ferreira, Jorge Luís, et al. “Relative Expression of Insulin Like Growth Factor I (IGFI) and Follicle Stimulating Hormone Receptor (FSHR) in Follicles and Ovarian Tissue from Bos Primigenius Indicus (Nelore)”. Brazilian Journal of Veterinary Research and Animal Science, vol. 39, no. 4, Jan. 2002, pp. 208-12, https://doi.org/10.1590/S1413-95962002000400008.