LOAKHAJORN, K.; ASSAWACHAIPORN, T.; KHOWASINTH, P. Cigarette Smoking: A Major Cause of Emphysema. International Journal of Formal Sciences: Current and Future Research Trends, [S. l.], v. 15, n. 1, p. 112–122, 2022. Disponível em: https://ijfscfrtjournal.isrra.org/index.php/Formal_Sciences_Journal/article/view/730. Acesso em: 1 may. 2024.