STATE-OF-THE-ART SURVEY OF DATA HIDING IN ECG SIGNAL. Balkan Journal of Applied Mathematics and Informatics, [S. l.], v. 4, n. 2, p. 51–69, 2021. Disponível em: https://js.ugd.edu.mk/index.php/bjami/article/view/4237. Acesso em: 3 oct. 2025.