Post COVID-19 condition and health-related quality of life: a longitudinal cohort study in the Belgian adult population, Smith, Pierre, De Pauw Robby, Van Cauteren Dieter, Demarest Stefaan, Drieskens Sabine, Cornelissen Laura, Devleesschauwer Brecht, De Ridder Karin, and Charafeddine Rana , BMC Public Health, Jan-12-2023, Volume 23, Issue 1, (2023)