Uggeri, J., E. Landi, S. Belletti, P. Govoni, R. Scandroglio, R. Gatti, and S. Guizzardi. “In Vitro Effects of Mg/Sr–substituted Hydroxyapatite on Osteoblast Activity”. Italian Journal of Anatomy and Embryology, vol. 115, no. 1/2, Nov. 2010, p. 172, https://oajournals.fupress.net/index.php/ijae/article/view/4557.