CHIN, A.; MILLAR, R. S. ECG Quiz 41 Answer. SA Heart Journal, [S. l.], v. 13, n. 1, p. 38–40, 2017. DOI: 10.24170/13-1-1691. Disponível em: https://www.journals.ac.za/SAHJ/article/view/1691. Acesso em: 8 oct. 2025.