Leelasiri, A., P. Phongmanjit, and T. Pongpruttipan. “A 61-Year-Old Woman Presented with Gastric Outlet Obstruction”. Greater Mekong Subregion Medical Journal, vol. 2, no. 3, Aug. 2022, pp. 163-8, https://he02.tci-thaijo.org/index.php/gmsmj/article/view/259019.