Privacy-Preserving Federated Learning Framework with Blockchain-Based Audit Trail for Multi-Hospital Disease Prediction. International Journal of Engineering & Extended Technologies Research (IJEETR), [S. l.], v. 8, n. 2, p. 4647–4654, 2026. DOI: 10.15662/IJEETR.2026.0802472. Disponível em: https://ijeetr.com/index.php/ijeetr/article/view/920. Acesso em: 1 jun. 2026.