HÜLAGÜ, Saadeddin, et al. “THE EFFECT OF AMOXICILIN + OMEPRAZOL AND COILOIDAL BISMUTH SUBCITRATE + ORNIDAZOL COMBINATIONS ON DUODENAL ULCER HEALING IN HELICOBACTER PYLORI POZITIVE ANTRAL GASTRITIS WITH DUODENAL ULCER PATIENTS”. Turkish Journal of Gastroenterology, vol. 5, no. 1, Jan. 1994, pp. 54-59, https://www.turkjgastroenterol.org/index.php/tjg/article/view/395.