Necmettin KARAEREN (2020) “Endosonographic diagnosis of submucosal upper gastrointestinal tumors”, Turkish Journal of Gastroenterology, 6(1), pp. 139–143. Available at: https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/1096 (Accessed: 7 July 2025).