Study of oxidative stress in relation with antioxidant status in chronic bronchitis. International Journal of Biomedical Research, [S. l.], v. 3, n. 7, p. 331–333, 2012. DOI: 10.7439/ijbr.v3i7.600. Disponível em: https://ssjournals.co.in/index.php/ijbr/article/view/759. Acesso em: 14 mar. 2025.