Tello Terán, Damián, Piedad Cecilia Redrován Reyes, and Vestal Geovanna Quinteros León. “PERIODONTAL DISEASE AS A RISK FACTOR FOR COVID-19”. Killkana Salud y Bienestar 7, no. 1 (January 9, 2023): 103–116. Accessed November 14, 2026. https://killkana.ucacue.edu.ec/index.php/killcana_salud/article/view/1003.