Pillai, Sastha Ahanatha, Sivasankar A., and Selvaraj T. “Foreign Bodies in the Oesophagus - Surgery for Failed Endoscopic Retrieval”. International Surgery Journal 3, no. 3 (December 9, 2016): 1426–1430. Accessed February 3, 2026. https://www.ijsurgery.com/index.php/isj/article/view/300.