Expression of Concern: Machine Learning techniques to Predictive in Healthcare: Hepatitis C Diagnosis. Mesopotamian Journal of Artificial Intelligence in Healthcare, [S. l.], v. 2026, p. 24–24, 2026. DOI: 10.58496/MJAIH/2026/009. Disponível em: https://journals.mesopotamian.press/index.php/MJAIH/article/view/1078. Acesso em: 7 mar. 2026.