Diomede, F., S. Giacoppo, I. Merciaro, P. Ballerini, P. Bramanti, E. Mazzon, and O. Trubiani. “Alternative Source of Stem Cells Derived from Human Periodontal Ligament: A New Treatment for Experimental Autoimmune Encephalomyelitis”. Italian Journal of Anatomy and Embryology, vol. 121, no. 1, Oct. 2017, p. 159, https://oajournals.fupress.net/index.php/ijae/article/view/2297.