Gupta, S. ., R. . Mehra, S. . V., and M. V. . Gupta. “A Novel Hybrid Optimization Approach for Securing Health Information Using Block Chain”. International Journal of Intelligent Systems and Applications in Engineering, vol. 11, no. 8s, July 2023, pp. 157-63, https://ijisae.org/index.php/IJISAE/article/view/3035.