Metformin and Vitamin B12 Deficiency: Evidence of Progressive Decline With Higher Dose and Longer Duration. Vascular and Endovascular Review, [S. l.], v. 8, n. 18s, p. 1–9, 2025. DOI: 10.64149/J.Ver.8.18s.1-9. Disponível em: https://verjournal.com/index.php/ver/article/view/1309. Acesso em: 8 apr. 2026.