%0 Journal Article %A Mögling, Ramona %A Colavita, Francesca %A Reimerink, Johan %A Melidou, Angeliki %A Leitmeyer, Katrin %A Keramarou, Maria %A Lapa, Daniele %A Francalancia, Massimo %A Murk, Jean-Luc %A Vossen, Ann %A Carletti, Fabrizio %A Hogema, Boris %A Meijer, Adam %A Deprez, Liesbet %A di Caro, Antonino %A Castilletti, Concetta %A Reusken, Chantal BEM %T External quality assessment of SARS-CoV-2 serology in European expert laboratories, April 2021 %D 2022 %J Eurosurveillance %V 27 %N 42 %P 2101057 %R doi:https://doi.org/10.2807/1560-7917.ES.2022.27.42.2101057 %K Europe %K COVID-19 %K serology %K antibodies %K SARS-CoV-2 %K EQA %U https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2022.27.42.2101057