1. Association between periodontitis and severity of COVID‐19 infection: A case–control study. (15th February 2021) Authors: Marouf, Nadya; Cai, Wenji; Said, Khalid N.; Daas, Hanin; Diab, Hanan; Chinta, Venkateswara Rao; Hssain, Ali Ait; Nicolau, Belinda; Sanz, Mariano; Tamimi, Faleh Journal: Journal of clinical periodontology Issue: Volume 48:Number 4(2021) Page Start: 483 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗