MILLAR, Rob Scott; CHIN, Ashley. ECG Quiz 42. SA Heart Journal, [S. l.], v. 13, n. 2, p. 120, 2017. DOI: 10.24170/13-2-1676. Disponível em: https://orion.journals.ac.za/index.php/SAHJ/article/view/1676. Acesso em: 12 jun. 2026.