Veiga, G. A. L., Milazzotto, M. P., Lúcio, C. F., Silva, L. C. G. and Vannucchi, C. I. (2015) “Estrogen and oxytocin receptors in the canine corpus luteum during pregnancy and parturition”, Brazilian Journal of Veterinary Research and Animal Science, 51(4), pp. 346-351. doi: 10.11606/issn.1678-4456.v51i4p346-351.