36. CLINICAL FEATURES ACCORDING TO HISTOPATHOLOGICAL LESIONS OF CHRONIC GASTRITIS AND RISK FACTORS OF HELICOBACTER PYLORY INFECTION IN CHILDREN AT NGHE AN OBSTERTRIC AND PEDIATRIC HOSPITAL. YHCĐ [Internet]. 2025 May 31 [cited 2026 Oct. 19];66(CĐ6-HNKH Bệnh viện Sản nhi Nghệ An). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/2302