Elif GÜRER İNANÇ, et al. “Brunner’ S Gland Mucus Within the Lamina Propria of Duodenal Biopsies A Potantial Source of Diagnostic Error”. Turkish Journal of Gastroenterology, vol. 10, no. 3, July 2019, pp. 190-2, https://tjg.avesjournals.com/index.php/tjg/article/view/1578.