RAVANABOINA SANKEERTHANA; P. VINAYA SREE; G. VISHNU MURTHY. Blockchain-Based EHR Hospital Management System: A Decentralized Solution for Healthcare Services. Utilitas Mathematica , [S. l.], v. 122, n. 1, p. 2511–2521, 2025. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/2542. Acesso em: 7 may. 2026.