van der Zwaard, B. C. ., Liu, W.-Y., Sprengers, J., Verschoor, N., van Hove, R. P. ., & Donell, S. (2021). Preparation for the next COVID-19 wave: The European Hip Society and European Knee Associates recommendations. Acta Orthopaedica, 92(2), 247–248. https://doi.org/10.1080/17453674.2021.1872169