Muhammad Bilal Khattak, Ehtisham Haider, Muhammad Hafeez, Khawar Shabir, Rafiudin, and Hafizullah Khan. 2024. “COMPARISON OF EARLY NEEDLE-KNIFE SPHINCTEROTOMY VS STANDARD BILIARY CANNULATION IN PREVENTING ERCP ASSOCIATED PANCREATITIS IN CASES OF DIFFICULT BILIARY CANNULATION -A TERTIARY CARE EXPERIENCE”. Journal of Ayub Medical College Abbottabad 36 (4 (Suppl 1). https://doi.org/10.55519/JAMC-S4-13953.