Khumaedi, A. I., D. Purnamasari, I. P. Wijaya, Y. Soeroso, and S. Marhamah. “Association of Periodontitis and Arterial Stiffness in Type 2 Diabetic Patients”. Acta Medica Indonesiana, vol. 50, no. 4, Jan. 2019, p. 320, https://www.actamedindones.org/index.php/ijim/article/view/839.