Serum B12 Levels in Type II Diabetics on Metformin Therapy and its association with Clinical Neuropathy. International Journal of Biomedical and Advance Research, [S. l.], v. 8, n. 8, p. 321–326, 2017. DOI: 10.7439/ijbar.v8i8.4356. Disponível em: https://ssjournals.co.in/index.php/ijbar/article/view/4356. Acesso em: 11 mar. 2026.