Maksudbekovna, B. A., and R. S. Odilbekovich. “MORPHOLOGICAL CHANGES IN THE INTESTINAL MUCOSA IN DUODENAL Peptic Ulcer”. American Journal of Pediatric Medicine and Health Sciences (2993-2149), vol. 1, no. 6, Aug. 2023, pp. 178-82, https://grnjournal.us/index.php/AJPMHS/article/view/658.