2 Srinivasan Srinivasan M M Zunt Zunt SL SL Goldblatt Goldblatt LI LI Oral epithelial expression of angiotensin converting enzyme-2: Implications for COVID-19 diagnosis and prognosis Oral epithelial expression of angiotensin converting enzyme-2: Implications for COVID-19 diagnosis and prognosis bioRxiv bioRxiv 2020 2020 10.1101/2020.06.22.165035 10.1101/2020.06.22.165035. The gene discussed is ACE2; the disease is COVID-19.