Ul Haq, Hafiz Burhan, Akifa Abbas, Rabia Aslam Khan, Ahmed Naeem Akhtar, Waseem Akram, Sabreena Nawaz, Faraz Imllak Mayo, and Ahmad Iftikhar Bhatti. “E-Healthcare Using Block Chain Technology and Cryptographic Techniques: A Review”. Pakistan Journal of Engineering and Technology 5, no. 4 (December 29, 2022): 21–28. Accessed July 5, 2025. https://journals.uol.edu.pk/pakjet/article/view/2225.