Naeem, Muhammad, Faiz ur Rehman, Anayat Ullah, Tariq Ahmad, Liaqat Ali, and Hazrat Ullah. 2013. “Efficacy of Percutaneous Nephrostomy for Management of Pyonephrosis”. Journal of Postgraduate Medical Institute 27 (4). https://jpmi.org.pk/index.php/jpmi/article/view/1406.