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, Feb. 2025, pp. 33-37, doi:10.47705/kjdmr.25911005.