Heart Defect Monitoring System Using Ecg Using Iot . International Journal of Information and Electronics Engineering, [S. l.], v. 16, n. 2, p. 319–325, 2026. DOI: 10.48047/vt4rev30. Disponível em: https://www.ijiee.org/index.php/ijiee/article/view/1145. Acesso em: 2 may. 2026.