Sravanthi K, Sekhar PC. An Efficient Integrity Verification based Multi-User Cloud Access Control Framework using Block Chain Technology on EHR Database . Int J Intell Syst Appl Eng [Internet]. 2023 Dec. 30 [cited 2024 Jul. 22];12(9s):536 -. Available from: https://ijisae.org/index.php/IJISAE/article/view/4406