OKÇU, N.; ONUK, M. D.; BURAN, T.; AKARSU, E.; ÇİFTLİOĞLU, M. A. FREQUANCY OF HELICOBACTER PYLORI IN CASES WITH NONSPESIFIC GASTRITIS IN ERZURUM REGION. Turkish Journal of Gastroenterology 2020, 5, 211-213.