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Effectiveness of vaccination against SARS-CoV-2 infection and Covid-19 hospitalisation among Finnish elderly and chronically ill—An interim analysis of a nationwide cohort study by Ulrike Baum, Eero Poukka, Arto A. Palmu, Heini Salo, Toni O. Lehtonen, Tuija Leino
Published 2021-01-01
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