“HIGH PREVALENCE OF VITAMIN B12 DEFICIENCY IN HELICOBACTER PYLORI-POSITIVE DYSPEPTIC PATIENTS: A CROSS-SECTIONAL STUDY FROM A LOW-INCOME SETTING”. Frontier in Medical and Health Research 3, no. 3 (May 5, 2025): 216–224. Accessed August 7, 2026. https://fmhr.net/index.php/fmhr/article/view/230.