JASSAT, W et al. Undiagnosed comorbidities among individuals hospitalised with COVID-19 in South African public hospitals. South African Medical Journal, South Africa, v. 112, n. 9, p. 747–752, 2022. DOI: 10.7196/SAMJ.2022.v112i9.16417. Disponível em: https://samajournals.co.za/index.php/samj/article/view/124. Acesso em: 7 oct. 2025.