Castrogiovanni, Paola, Marco Fisichella, and Rosa Imbesi. 2010. “Neuroendocrinological and Ultrastructural Observations in Young Adult Serotonin-Free Male Rats”. Italian Journal of Anatomy and Embryology 115 (1/2):35. https://oajournals.fupress.net/index.php/ijae/article/view/4420.