Office E. Diffuse circumferential hyperplasia of Brunner’s glands causing obstruction in the duodenum in a 12-year-old child. Turkish Journal of Gastroenterology [Internet]. 2012 Jan. 4 [cited 2026 Jan. 1];23(4):414-5. Available from: https://turkjgastroenterol.org/index.php/tjg/article/view/2103