Feasibility and learning curve of a standardized laparoscopic cholecystectomy technique using a reusable bipolar device: a risk-adjusted CUSUM analysis of 780 cases operated by surgical trainees. - Ghamarnejad, Omid; Kardassis, Dimitrios; Widyaningsih, Rizky; Javaheri, Hamraz; Gharbi, Akram; Stavrou, Gregor Alexander (Surgical Endoscopy & Other Interventional Techniques, 2025)