CHIN, A.; MILLAR, R. S. ECG Quiz 48 - Question. SA Heart Journal, [S. l.], v. 14, n. 4, p. 256, 2017. DOI: 10.24170/14-4-2737. Disponível em: https://www.journals.ac.za/SAHJ/article/view/2737. Acesso em: 8 oct. 2025.