Tarık Akar, et al. “Wasted Variceal Banding Cap-Assisted Removal of Embedded Esophageal Chicken Bone: A Simple and Inexpensive Method”. Turkish Journal of Gastroenterology, vol. 28, no. 3, July 2019, pp. 233-4, https://tjg.avesjournals.com/index.php/tjg/article/view/3399.