MILLAR, R. S.; CHIN, A. ECG Quiz 38 - Answer. SA Heart Journal, [S. l.], v. 12, n. 2, p. 92–95, 2017. DOI: 10.24170/12-2-1725. Disponível em: https://www.journals.ac.za/SAHJ/article/view/1725. Acesso em: 8 oct. 2025.