CLINICAL FEATURES, PARACLINICAL FINDINGS, AND ENDOSCOPIC IMAGES OF THE STOMACH AND DUODENUM IN PATIENTS WITH RHEUMATOID ARTHRITIS WITH ANEMIA TREATED IN THAI NGUYEN. YHCĐ [Internet]. 2026 Mar. 31 [cited 2026 Sept. 8];67(3). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/4618