Yousaf, Muhammad Nadeem, Yasir Mahmud, Shahid Sarwar, Muhammad Nauman Ahmad, Mahmood Ahmad, and Ghulam Abbas. 2022. “Predicting Common Bile Duct Stones: Comparison of SAGES, ASGE and ESGE Criteria for Accuracy”. Pakistan Journal of Medical Sciences 38 (8). https://doi.org/10.12669/pjms.38.8.6666.