Haider, A., Shalim, E. ., & Afzal, S. . (2023). 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(2), 3–7. https://doi.org/10.53778/pjkd72221