OKREGLICKI, A. Answer to ECG Quiz no. 10. SA Heart Journal, [S. l.], v. 5, n. 1, p. 46–47, 2017. DOI: 10.24170/5-1-2062. Disponível em: https://www.journals.ac.za/SAHJ/article/view/2062. Acesso em: 8 oct. 2025.