KARAOĞLU, A. Önder (1993) “THE EFFICIENCY OF OMEPRAZOLE AT THE TREATMENT OF THE DUODENAL ULCER”, Turkish Journal of Gastroenterology, 4(3), pp. 473–475. Available at: https://www.turkjgastroenterol.org/index.php/tjg/article/view/325 (Accessed: 1 January 2026).