Hassan, I, A Zielke, M Rothmund, and B Gerdes. “Improvement of Surgical Skills After a Three-Day Practical Course for Laparoscopic Surgery”. Swiss Medical Weekly 136, no. 3940 (October 7, 2006): 631–636. Accessed February 19, 2025. https://smw.ch/index.php/smw/article/view/653.