Lehmann, I., Peytremann, A. and Mueller, Y. 2022. Impact of the COVID-19 pandemic on adherence to infection prevention and control measures between 2019 and 2021 in Swiss sentinel private practices: repeated cross-sectional surveys. Swiss Medical Weekly. 152, 2122 (May 2022), w30170. DOI:https://doi.org/10.4414/SMW.2022.w30170.