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One year of laboratory-based COVID-19 surveillance system in Belgium: main indicators and performance of the laboratories (March 2020-21)., Meurisse, Marjan, Lajot Adrien, Dupont Yves, Lesenfants Marie, Klamer Sofieke, Rebolledo Javiera, Lernout Tinne, Leroy Mathias, Capron Arnaud, Van Bussel Johan, et al. , Arch Public Health, 2021 Oct 27, Volume 79, Issue 1, (2021)\par \par }