Regalla, Dileep Kumar Reddy, Rojymon Jacob, Ashish Manne, and Ravi Kumar Paluri. “Therapeutic Options for Ampullary Carcinomas. A Review”. Oncology Reviews 13, no. 2 (September 10, 2019). Accessed September 16, 2019. https://oncologyreviews.org/index.php/or/article/view/440.