Khalid Shaban, Atef alasfar, and Nada Shaban. “Evaluation of Tumor Necrosis Factor α (TNF-α) in Gingival Crevicular Fluid and Serum Before and After Phase I Therapy With Subgingival Delivery of Hyaluronic Acid in Chronic Periodontitis Patients”. Khalij-Libya Journal of Dental and Medical Research (February 6, 2025): 33–37. Accessed February 22, 2025. http://journals.khalijedental.com.ly/index.php/ojs/article/view/158.