CHIN, A.; MILLAR, R. ECG Quiz 69 answers. SA Heart Journal, [S. l.], v. 22, n. 3, p. 198–200, 2025. DOI: 10.24170/22-3-7705. Disponível em: https://www.journals.ac.za/SAHJ/article/view/7705. Acesso em: 8 oct. 2025.