MILLA, R. S.; CHIN, A. ECG Quiz 43 Answer. SA Heart Journal, [S. l.], v. 13, n. 3, p. 254–256, 2017. DOI: 10.24170/13-3-1665. Disponível em: https://www.journals.ac.za/SAHJ/article/view/1665. Acesso em: 8 oct. 2025.