FHIR, Blockchain, and AI-Powered Middleware: Enhancing Healthcare Data Interoperability in Cloud and Fog Computing. International Journal of Engineering Research and Science & Technology, [S. l.], v. 20, n. 1, p. 430–446, 2024. DOI: 10.62643/. Disponível em: https://ijerst.org/index.php/ijerst/article/view/580. Acesso em: 15 aug. 2026.