Real-world nirmatrelvir-ritonavir outpatient treatment in reducing hospitalization for high-risk patients with COVID-19 during Omicron BA.4, BA.5 and XBB subvariants dominance in Malaysia: A retrospective cohort study
Low et al., International Journal of Infectious Diseases, doi:10.1016/j.ijid.2023.08.003
https://c19early.org/low4.html