Detecting Healthcare Billing Anomalies with Graph Neural Networks. The American Online Journal of Science and Engineering (AOJSE), [S. l.], v. 2, n. 04, 2024. DOI: 10.5281/zenodo.20744309. Disponível em: https://aojse.org/index.php/aojse/article/view/5. Acesso em: 30 oct. 2026.