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  1. Article

    Open Access

    Effect modification of the association between comorbidities and severe course of COVID-19 disease by age of study participants: a systematic review and meta-analysis

    Comprehensive evidence synthesis on the associations between comorbidities and behavioural factors with hospitalisation, intensive care unit (ICU) admission, and death due to COVID-19 is required for deriving ...

    Nathalie Verónica Fernández Villalobos, Jördis Jennifer Ott in Systematic Reviews (2021)