Pfützner, A., Schaedlich, M., Möller, P., Gupta, S., Pätilä, T., Räisänen, I., & Sorsa, T. (2023). The Oral-Systemic Link: A Review about the strong Correlation between Diabetes mellitus, Periodontitis and COVID-19 Outcome. Medical Research Archives, 11(1). doi:10.18103/mra.v11i1.3449