VAN DEN HEEVER, E.; BOTES, L.; BROWN, S.; SMIT, F. Demographic and clinical profile of patients undergoing echocardiography at a tertiary institution in central South Africa. SA Heart Journal, [S. l.], v. 21, n. 1, p. 18–27, 2024. DOI: 10.24170/21-1-5625. Disponível em: https://www.journals.ac.za/SAHJ/article/view/5625. Acesso em: 8 oct. 2025.