Iqbal, Brig Muhammad. “ROLE OF EARLY PRE-CUT NEEDLE KNIFE PAILLOTOMY IN ACHIEVING SUCCESSFUL SELECTIVE COMMON BILIARY DUCT CANNULATION: Pre-Cut Needle Knife Paillotomy”. Pakistan Armed Forces Medical Journal 60, no. 1 (March 31, 2010): 45–8. Accessed August 23, 2025. https://www.pafmj.org/PAFMJ/article/view/182.