Gulfishan S, Ahmed Syed S, Reddy Pathakota K, Krishnan P, B Reddy A, Fazal I. Comparative evaluation of serum and gingival crevicular fluid levels of interleukin 21 in periodontally diseased and healthy patients. J Circ Biomark [Internet]. 2024 Sep. 20 [cited 2024 Oct. 28];13(1):14-22. Available from: https://journals.aboutscience.eu/index.php/jcb/article/view/3149