Effect of Cigarette Smoking on Serum Homocysteine and Vitamin B12 Levels in Apparently Healthy Male Smokers. Mugda Medical College Journal, [S. l.], v. 8, n. 2, p. 101–106, 2025. DOI: 10.3329/mumcj.v8i2.85797. Disponível em: https://www.banglajol.info/index.php/MuMCJ/article/view/85797. Acesso em: 6 jul. 2026.