G DEEPTHI SARANYA; MRS. A DURGA BHANVANI; DR G VISHNU MURTHY. A Secure and Intelligent Healthcare Chatbot Using Blockchain And AI. Utilitas Mathematica , [S. l.], v. 122, n. 2, p. 602–610, 2025. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/2753. Acesso em: 25 aug. 2026.