van der Zwaard BC, Liu W-Y, Sprengers J, Verschoor N, van Hove RP, Donell S. Preparation for the next COVID-19 wave: The European Hip Society and European Knee Associates recommendations. ActaO [Internet]. 2021 Feb. 22 [cited 2024 Sep. 1];92(2):247-8. Available from: https://actaorthop.org/actao/article/view/2007