Mehak Hanif, Kamran Khan Sumalani, Vishal Mandhan, Zarkesh Shaikh, and Shahbaz Haider, “Abnormal Renal Function Tests at Presentation in Severe COVID-19 Pneumonia and its Effect on Clinical Outcomes”, PJMR, vol. 62, no. 2, pp. 59–64, Jul. 2023.