Risk Factors and Outcome of Acute Kidney Injury in Critical COVID-19 patients in Karachi, Pakistan: A Single center, Retrospective study. Pak J Kidney Dis [Internet]. 25. lipanj 2023. [citirano 13. listopad 2026.];7(2):3-7. Dostupno na: https://www.pjkd.com.pk/index.php/pjkd/article/view/221