MILLAR, R. S.; CHIN, A. ECG Quiz 64 Answer. SA Heart Journal, [S. l.], v. 20, n. 1, p. 108–109, 2023. DOI: 10.24170/20-1-6180. Disponível em: https://www.journals.ac.za/SAHJ/article/view/6180. Acesso em: 8 oct. 2025.