REDDY, D.; KLEINLOOG, R.; JANSON, J.; MANGANYI, R.; BRINK, J.; ZILLA, P. COVID-19 and cardiothoracic surgery: A risk-adjusted approach in the context of a global pandemic. SA Heart Journal, [S. l.], v. 17, n. 3, p. 346–350, 2020. DOI: 10.24170/17-3-4382. Disponível em: https://www.journals.ac.za/SAHJ/article/view/4382. Acesso em: 8 oct. 2025.