Effectiveness of Nirmatrelvir/Ritonavir in Unvaccinated COVID-19 Patients Treated in the Emergency Department: A Retrospective Propensity-Matched Cohort Analysis. - Jehle, Dietrich von Kuenssberg; Sunesra, Raheed; Williams, Shania M; Bilby, Nathaniel J; Paul, Krishna K; Hill, Kelcie (Therapeutic Advances in Pulmonary & Critical Care Medicine, 2026)