da Caridade Felix Chitanga F. THE ROLE OF HEALTH INFORMATION SYSTEMS IN TRANSFORMING AND ENHANCING THE EFFICIENCY OF ANGOLA’S HEALTH SYSTEM: CHALLENGES AND OPPORTUNITIES . smclk [Internet]. 2025 Jun. 19 [cited 2026 Jul. 12];6(2). Available from: https://asistent.ceon.rs/index.php/smclk/article/view/58193