DOĞAN Ümit B, TUNÇER C, DURSUN A, KANDİLCİ U. Association of duodenal bulb Helicobacter pylori with duodenal ulcer and its relapses. Turkish Journal of Gastroenterology [Internet]. 1997 Jan. 3 [cited 2026 Jan. 1];8(3):313-7. Available from: https://turkjgastroenterol.org/index.php/tjg/article/view/808