Lilliu, M., F. Loy, P. Solinas, M. Isola, and R. Isola. “Melatonin Localization in Serous Cells of Human Salivary Glands”. Italian Journal of Anatomy and Embryology, vol. 120, no. 1, Sept. 2015, p. 80, https://oajournals.fupress.net/index.php/ijae/article/view/4034.