Soliman O. Amro, Hisham I. Othman, and Mohammed S. Al Zahrani. “Microanalysis of Root Cementum in Patients With Aggressive Periodontitis”. Journal of King Abdulaziz University: Medical Sciences, vol. 23, no. 1, July 2023, pp. 9-17, https://journals.kau.edu.sa/index.php/MedSci/article/view/1154.