Kafle, Shristi, et al. “Evaluation of Serum C-Reactive Protein, Plasma Fibrinogen, and Blood Leukocytes in Patients With Chronic Periodontitis”. Journal of Nepalese Society of Periodontology and Oral Implantology, vol. 5, no. 1, July 2021, pp. 11-18, doi:10.3126/jnspoi.v5i1.38177.