ASSESSMENT OF VITAMIN B-12 DEFICIENCY IN HELICOBACTER PYLORI STOOL ANTIGEN POSITIVE DYSPEPTIC PATIENTS VISITING A TERTIARY CARE HOSPITAL. FMHR [Internet]. 2025 Jul. 19 [cited 2026 Sep. 23];3(5):2022-8. Available from: https://fmhr.net/index.php/fmhr/article/view/1327