Karaca, Mehmet, et al. “Relation of Antiulcer Effect of Progesterone Resulting from Follicle Stimulating Hormone Inhibition With Gastric Cyclooxygenase Levels in Female Rats”. Asian Journal of Chemistry, vol. 22, no. 5, Mar. 2010, pp. 3761-70, https://asianpubs.org/index.php/ajchem/article/view/11609.