Enhancing Cloud Healthcare Security Using Fine-Grained Access Control With Weight-Improved Particle Swarm Optimization And Zero-Knowledge Proofs. INTERNATIONAL JOURNAL OF MANAGEMENT RESEARCH AND REVIEW, [S. l.], v. 15, n. 1, p. 69–83, 2025. Disponível em: https://ijmrr.com/index.php/ijmrr/article/view/160. Acesso em: 6 apr. 2026.