Real-world effectiveness of early molnupiravir or nirmatrelvir–ritonavir in hospitalised patients with COVID-19 without supplemental oxygen requirement on admission during Hong Kong's omicron BA.2 wave: a retrospective cohort study
Wong et al., The Lancet Infectious Diseases, doi:10.1016/S1473-3099(22)00507-2 (preprint 5/20/2022)
https://c19early.org/wong3.html