Di Vito, Anna, Manuela Chiarella, Francesco Bennardo, Ivan Presta, Natalia Malara, Amerigo Giudice, Leonzio Fortunato, Giuseppe Donato, and Tullio Barni. 2017. “Effects of Culture System and Hypoxia on Long-Term Expansion and Differentiation of Mesenchymal Stem Cells Derived from Periodontal Ligament”. Italian Journal of Anatomy and Embryology 122 (1):81. https://oajournals.fupress.net/index.php/ijae/article/view/1854.