Short-term impact of the COVID-19 confinement measures on health behaviours and weight gain among adults in Belgium, Drieskens, Sabine, Berger Nicolas, Vandevijvere Stefanie, Gisle Lydia, Braekman Elise, Charafeddine Rana, De Ridder Karin, and Demarest Stefaan , Archives of Public Health, 2021-02-22, Volume 79, Issue 1, (2021)