Joelijanto, R., Y. C. . Rahayu, R. Sutjiati, and S. . “Effect of Cocoa Pod Husk Proanthocyanidins Extract on Cyclooxigenase-2 (COX-2) Expression in Gingival Crevicular Fluid of Periodontitis Rats”. International Journal of Medical Science and Clinical Research Studies, vol. 3, no. 06, June 2023, pp. 1198-02, doi:10.47191/ijmscrs/v3-i6-31.