Pfützner, Andreas, 		Schaedlich, Marie, 		Möller, Peter, 		Gupta, Shipra, 		Pätilä, Tommi, 		Räisänen, Ismo, AND 		Sorsa, Timo.
" The Oral-Systemic Link: A Review about the strong Correlation between Diabetes mellitus, Periodontitis and COVID-19 Outcome" <em>Medical Research Archives</em> [Online], Volume 11 Number 1 (31 January 2023)