A. Ghada Younis, H. Heba F, and S. Ammar S, “Assessment of Periodontal Pathogens and Gingival Health Improvement after School-based Educational Program among Secondary School Students”, HOM, vol. 9, no. 1, Feb. 2023, Accessed: Apr. 21, 2025. [Online]. Available: https://historymedjournal.com/HOM/index.php/medicine/article/view/580