Karimov Khakimjon Raimberdievich. “Types, Complications, Prevalence and Methods of Investigation of Chronic Ulcer Disease of the Stomach and Duodenum”. American Journal of Pediatric Medicine and Health Sciences (2993-2149) 1, no. 10 (December 13, 2023): 262–266. Accessed December 22, 2024. http://grnjournal.us/index.php/AJPMHS/article/view/2005.