Khan, Muhammad Babar, Rashid M ahmood, Abdul Ghaffar, and Tariq Mahmood. 2006. “ROLE OF SONOURETHROGRAPHY IN EVALUATION OF ANTERIOR URETHRAL STRICTURE AND ITS COMPARISON WITH RETROGRADE URETHROGRAPHY”. Pakistan Armed Forces Medical Journal 56 (3):300-305. https://www.pafmj.org/PAFMJ/article/view/1483.