BUYS, D.; GREIG, C.; BROWN, S. ASD and PDA closure with CeraTM and CeraFlexTM devices. SA Heart Journal, [S. l.], v. 13, n. 1, p. 6–10, 2017. DOI: 10.24170/13-1-1686. Disponível em: https://www.journals.ac.za/SAHJ/article/view/1686. Acesso em: 8 oct. 2025.