Comparison of characteristics, predictors and outcomes between the first and second COVID-19 waves in a tertiary care centre in Switzerland: an observational analysis. Swiss Medical Weekly, [S. l.], v. 151, n. 3132, p. w20569, 2021. DOI: 10.4414/smw.2021.20569. Disponível em: https://www.smw.ch/index.php/smw/article/view/3044. Acesso em: 11 dec. 2025.