Pre-existing health conditions and severe COVID-19 outcomes: an umbrella review approach and meta-analysis of global evidence
M Treskova-Schwarzbach, L Haas, S Reda, A Pilic… - BMC medicine, 2021 - Springer
Background This study applies an umbrella review approach to summarise the global
evidence on the risk of severe COVID-19 outcomes in patients with pre-existing health …
evidence on the risk of severe COVID-19 outcomes in patients with pre-existing health …
[引用][C] Pre-existing health conditions and severe COVID-19 outcomes: an umbrella review approach and meta-analysis of global evidence
M Treskova - Deutsche Nationalbibliothek