KHAN, H. B. .; KHATTAK, M. S. .; DURRANI, M. .; HUSSAIN, A. .; KHAN, S. Y. .; REHMAN, A. U. . Exploring the Role of Vitamin D3 in Addressing Lung Dysfunction and Small Airways Degeneration in Chronic Obstructive Pulmonary Disease . Pakistan Journal of Chest Medicine, [S. l.], v. 27, n. 4, p. 310–315, 2021. Disponível em: http://www.pjcm.net/index.php/pjcm/article/view/762. Acesso em: 17 apr. 2026.