Real-world use of nirmatrelvir–ritonavir in outpatients with #COVID-19 during the era of omicron variants including BA.4 and BA.5 in Colorado, USA: a retrospective cohort study - The Lancet Infectious Diseases
▻https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(23)00011-7/abstract
