1.
Ammann P, Ulyte A, Haile SR, Puhan MA, Kriemler S, Radtke T. Perceptions towards mask use in school children during the SARS-CoV-2 pandemic: descriptive results from the longitudinal Ciao Corona cohort study. Swiss Med Wkly [Internet]. 2022 Apr. 20 [cited 2024 Jul. 23];152(1516):w30165. Available from: https://smw.ch/index.php/smw/article/view/3188