HUSSEN, H. M. A Blockchain-based Service Provider Validation and Verification Framework for Healthcare Virtual Organization. UHD Journal of Science and Technology, [S. l.], v. 2, n. 2, p. 24–31, 2018. DOI: 10.21928/uhdjst.v2n2y2018.pp24-31. Disponível em: https://journals.uhd.edu.iq/index.php/uhdjst/article/view/153. Acesso em: 3 may. 2024.