Ghalwash, D. M., Shaker, O. G., & Mahmoud, E. A. (2019). Evaluation of Local and Systemic Levels of Vitamin D3 and Fibroblast Growth Factor 23 After Non-Surgical Periodontal Therapy. Perio J, 3(1), 38–48. https://doi.org/10.26810/perioj.2019.a5