Magalhães, Deborah de Melo, et al. “Different Follicle-Stimulating Hormone (FSH) Sources Influence Caprine Preantral Follicle Viability and Development in Vitro”. Brazilian Journal of Veterinary Research and Animal Science, vol. 46, no. 5, Oct. 2009, pp. 378-86, https://doi.org/10.11606/issn.1678-4456.bjvras.2009.26787.