A cohort study of patients hospitalised with SARS-CoV-2 infection in Ontario: patient characteristics and outcomes by wave. Swiss Medical Weekly, [S. l.], v. 154, n. 3, p. 3636, 2024. DOI: 10.57187/s.3636. Disponível em: https://www.smw.ch/index.php/smw/article/view/3636. Acesso em: 14 oct. 2025.