WAHAB, Abdul; SHAHAB, Khalid; RAHMAN, Muhib; GHANI, Usman; BILAL, Muhammad. Vitamin B12 Deficiency in Patients with Helicobacter Pylori Infection. Biological and Clinical Sciences Research Journal, Lahore, PK, v. 6, n. 5, p. 417–420, 2025. DOI: 10.54112/bcsrj.v6i5.2237. Disponível em: https://bcsrj.com/ojs/index.php/bcsrj/article/view/2237. Acesso em: 22 apr. 2026.