MILLAR, R.; CHIN, A. ECG Quiz 70 answers. SA Heart Journal, [S. l.], v. 22, n. 4, p. 240–243, 2025. DOI: 10.24170/22-4-7750. Disponível em: https://www.journals.ac.za/SAHJ/article/view/7750. Acesso em: 23 oct. 2025.