Risk factors affecting COVID-19 vaccine effectiveness identified from 290 cross-country observational studies until February 2022: a meta-analysis and meta-regression

by Marek Petráš, Roman Máčalík, Daniela Janovská, Alexander M. Čelko, Jana Dáňová, Eliška Selinger, Jonáš Doleček, Sylva Neradová, Martina Franklová, Pavel Dlouhý, Jozef Rosina, Ivana Králová Lesná
Published 2022-11-01