Anwar, Javed, Sidra Waheed, and Waseem Raja. 2020. “COMPARATIVE EFFICACY OF ULTRASONOGRAPHY (USG) VERSUS MAGNETIC RESONANCE CHOLANGIOPANCREATOGRAPHY (MRCP) FOR THE DIAGNOSIS OF CHOLEDOCHOLITHIASIS”. Pakistan Armed Forces Medical Journal 70 (4):1003-06. https://pafmj.org/PAFMJ/article/view/5071.