Anxiety and Depression in Belgium during the First 15 Months of the COVID-19 Pandemic: A Longitudinal Study, Bruggeman, Helena, Smith Pierre, Berete Finaba, Demarest Stefaan, Hermans Lize, Braekman Elise, Charafeddine Rana, Drieskens Sabine, De Ridder Karin, and Gisle Lydia , Behavioral Sciences, Jan-05-2022, Volume 12, Issue 5, (2022)