M. Uzunkaya and H. Gundogar, “Evaluation of periostin levels in gingival crevicular fluid and peri-implant sulcus fluid in patients with periodontal and peri-implanter disease: A cross-sectional study ”, Ann Med Res , vol. 26, no. 10, pp. 2093–2097, May 2021, Accessed: Aug. 25, 2026. [Online]. Available: http://www.annalsmedres.org/index.php/aomr/article/view/1821