“Risk Factors and Outcome of Acute Kidney Injury in Critical COVID-19 Patients in Karachi, Pakistan: A Single Center, Retrospective Study”. Pakistan Journal of Kidney Diseases 7, no. 2 (juni 25, 2023): 3–7. Set juli 1, 2026. https://www.pjkd.com.pk/index.php/pjkd/article/view/221.