Association between SARS-CoV-2 variants and post COVID-19 condition: findings from a longitudinal cohort study in the Belgian adult population, Khanh, Huyen Nguyen Thi, Cornelissen Laura, Castanares-Zapatero Diego, De Pauw Robby, Van Cauteren Dieter, Demarest Stefaan, Drieskens Sabine, Devleesschauwer Brecht, De Ridder Karin, Charafeddine Rana, et al. , BMC Infect Dis, 2023 Nov 08, Volume 23, Issue 1, (2023)