Risk factors for severe outcomes for COVID-19 patients hospitalised in Switzerland during the first pandemic wave, February to August 2020: prospective observational cohort study. Swiss Medical Weekly, [S. l.], v. 151, n. 2930, p. w20547, 2021. DOI: 10.4414/smw.2021.20547. Disponível em: https://www.smw.ch/index.php/smw/article/view/3041. Acesso em: 13 oct. 2025.