Kumar, Rajneesh, Ankur Hastir, Lakshay Chopra, Sonali Jindal, R. P. S. Walia, and Subhash Goyal. “Role of Drains in Cases of Peptic Ulcer Perforations: Comparison Between Single Drain Versus No Drain”. International Surgery Journal 7, no. 2 (January 27, 2020): 404–407. Accessed April 16, 2026. https://www.ijsurgery.com/index.php/isj/article/view/5350.