Muhammad Ayub Naich, Sagheer Hussain, Adeel Qamar, Hina Zamir, Zia Ul Mustafa, Fatima Cheema. “Evaluation of Different Types of Gallstones Extracted by Endoscopic Retrograde Cholangiopancreatography”. Pakistan Journal of Medical & Health Sciences 16, no. 11 (December 24, 2022): 191. Accessed September 19, 2024. https://mail.pjmhsonline.com/index.php/pjmhs/article/view/3338.