Eloy, A. M. X.; Rodway, R. Central Action of the Naloxone on ß-Endorphins and Luteinizing Hormone (LH) in Ovariectomized and Hypoglicemic Ewes. Braz. J. Vet. Res. Anim. Sci. 1999, 36 (5), 253-257. https://doi.org/10.1590/S1413-95961999000500006.