Estimation Of Serum-Lead Levels In Tobacco Smokers ,Non - Tobacco Smokers, Raw Tobacco Chewers And Its Effects On Hemoglobin Levels-A Comparative Study. International Journal of Food and Nutritional Sciences, [S. l.], v. 12, n. 1, p. 1904–1909, 2023. Disponível em: https://www.ijfans.org/index.php/Journal/article/view/1877. Acesso em: 22 oct. 2026.