SHAHEEN, S. . .; HUMAYUN , A. .; ZAIB, J. . . .; BUKHARI , S. M. S. A. .; JADOON, M. .; SAMMAR, K. . . The correlation between Cytokines imbalance and Vitamin D level in Patients with early Chronic Obstructive Pulmonary Disease (COPD) and the role of Vitamin D in Pulmonary Disease. Pakistan Journal of Chest Medicine, [S. l.], v. 29, n. 2, p. 192–198, 2023. DOI: 10.1996/pjcm.v29i2.838. Disponível em: https://pjcm.net/index.php/pjcm/article/view/838. Acesso em: 8 mar. 2026.