Namra Shakoor, Sumera Naz, Muhammad Mudasser Khan. Comparison of Hasson (Open) and Veress Needle (Closed) Technique of Creating Pneumoperitonium in Laparoscopic Cholecystectomy. Pakistan Journal of Medical & Health Sciences [Internet]. 2022 Jul. 17 [cited 2024 Jul. 17];16(05):1093. Available from: https://pjmhsonline.com/index.php/pjmhs/article/view/1655