B, Asha, Rudrakshi C, MLV Prabhuji, and Pireethi P. 2022. “To Estimate the Levels of Gingival Crevicular Fluid YKL-40 in Patients With Chronic Periodontitis and Rheumatoid Arthritis With Chronic Periodontitis - a Clinico-Biochemical Study”. Journal of Clinical Advances in Dentistry 6 (1):010-016. https://doi.org/10.29328/journal.jcad.1001026.