MILLAR, R. S.; CHIN, A. Answer to ECG Quiz 36. SA Heart Journal, [S. l.], v. 11, n. 4, p. 210–212, 2017. DOI: 10.24170/11-4-1743. Disponível em: https://www.journals.ac.za/SAHJ/article/view/1743. Acesso em: 8 oct. 2025.