mRNA vaccine effectiveness against COVID-19-related hospitalisations and deaths in older adults: a cohort study based on data linkage of national health registries in Portugal, February to August 2021
Nunes, Baltazar and Rodrigues, Ana Paula and Kislaya, Irina and Cruz, Camila and Peralta-Santos, André and Lima, João and Pinto Leite , Pedro and Sequeira, Duarte and Matias Dias , Carlos and Machado, Ausenda, Eurosurveillance, 26, 2100833 (2021), https://doi.org/10.2807/1560-7917.ES.2021.26.38.2100833