Zihni KARAEREN, Ayşegül AKBAY, Selda DEMİRTAŞ, İmge ERGÜDER, Ali ÖZDEN. A reference interval study of urinary lactulose excretion: a useful test of intestinal permeability in adults. Turkish Journal of Gastroenterology [Internet]. 2019 Jul. 25 [cited 2025 Jul. 22];13(1):35-9. Available from: https://tjg.avesjournals.com/index.php/tjg/article/view/1775