F. G. Villanueva-Sánchez, K. M. Avelar-Juárez, N. Pérez-Cornejo, E. A. Cruz-Monroy, and J. D. Ramos-Baena, “Gene Expression of ECA2 Receptors in the Oral Cavity and Salivary Glands and Its Role in SARS CoV2 Infection. Literature Review”, Odovtos - Int J Dent Sc, vol. 22, no. 3, pp. 87–92, Jun. 2020.