SARITAŞ, Ülkü, et al. “EFFICACY OF OMEPRAZOLE PLUS AMOXYCILLIN ERADICATING HELICOBACTER PYLORI”. Turkish Journal of Gastroenterology, vol. 4, no. 4, Jan. 1993, pp. 637-9, https://turkjgastroenterol.org/index.php/tjg/article/view/365.