Yan, Vincent Ka Chun ; Wan, Eric Yuk Fai ; Ye, Xuxiao... https://discovery.ucl.ac.uk/id/eprint/10169578/1/Waning%20effectiveness%20against%20COVID%2019%20related%20hospitalisation%20severe%20complications%20and%20mortality%20with%20two%20to%20three%20doses%20of%20CoronaVac%20and%20BNT162b2%20a.pdf.
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2023
Yan, Vincent Ka Chun ; Wan, Eric Yuk Fai ; Ye, Xuxiao... https://discovery.ucl.ac.uk/id/eprint/10158675/1/Effectiveness%20of%20BNT162b2%20and%20CoronaVac%20vaccinations%20against%20mortality%20and%20severe%20complications%20after%20SARS-CoV-2%20Omicron%20BA.pdf.
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2022