Comparison of Patients Infected With Delta Versus Omicron COVID-19 Variants Presenting to Paris Emergency Departments : A Retrospective Cohort Study.
Ann Intern Med. 2022 Jun;175(6):831-837. doi: 10.7326/M22-0308. Epub 2022 Mar 15.
Ann Intern Med. 2022.
PMID: 35286147
Free PMC article.