Mattioli-Belmonte, M., C. Ferretti, P. Gentile, M. Orciani, V. Borsari, and R. Di Primio. “Periosteal Derived Cells and Bone Tissue Regenerative Medicine”. Italian Journal of Anatomy and Embryology, vol. 116, no. 2, Nov. 2011, p. 115, https://oajournals.fupress.net/index.php/ijae/article/view/4689.