34. CLINICAL AND PARACLINICAL CHARACTERISTICS OF GASTROINTESTINAL BLEEDING IN PATIENTS WITH GASTRIC AND DUODENAL ULCERS AT NGHE AN GENERAL FRIENDSHIP HOSPITAL. Vietnam Journal of Community Medicine, v. 66, n. CĐ3-HNKH Ký Sinh Trùng VN lần thứ 51, 24 Mar.2025.