Baudi, Paolo, et al. “Ultrastructural Aspects of Articular Cartilage and Sub- Chondral Bone in Patients Affected by Post-Traumatic Shoulder Instability: Preliminary Observations”. Italian Journal of Anatomy and Embryology, vol. 120, no. 1, Sept. 2015, p. 55, https://oajournals.fupress.net/index.php/ijae/article/view/4009.