Nisar Ahmed Khan, Narain Das, Asma Shams, Humaira Ashraf, Riaz Ahmed Memon, Abdul Haq Shaikh. “Frequency of Causative Factors and Microbial Etiology of the Keratitis”. Pakistan Journal of Medical & Health Sciences 16, no. 04 (June 10, 2022): 1006. Accessed June 21, 2026. https://www.pjmhsonline.com/pjmhs/article/view/1205.