Saadeddin HÜLAGÜ, “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, pp. 54–59, Apr. 2020.