Chhabra, Gurpreet Singh, Anumeet Singh Grover, and Gagandeep Kaur. “Chronic Retained Esophageal Foreign Body: A Case Report”. International Journal of Contemporary Pediatrics 8, no. 2 (January 22, 2021): 383–385. Accessed October 25, 2025. https://www.ijpediatrics.com/index.php/ijcp/article/view/3962.