Bamrungphuet, A., S. Rassameemasmaung, P. Pengkaew, and C. Mansanguan. “Plasma fibrinogen and C-reactive protein decreased after nonsurgical periodontal therapy in non-coronary heart disease subjects with periodontitis”. Mahidol Dental Journal, vol. 42, no. 1, Mar. 2022, pp. 1-12, https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/252803.