Then, Eric Omar, Febin John, Carmine Catalano, Michell Lopez, and Vinaya Gaduputi. “An Unexpected Surprise: Delayed Gastric Outlet Obstruction from Coin Ingestion”. Clinics and Practice 9, no. 2 (May 7, 2019). Accessed July 3, 2020. https://www.clinicsandpractice.org/index.php/cp/article/view/1153.