SREEKUMAR, A.; VELAYUDHAN, K. K. Role of serum magnesium in acute exacerbations of chronic obstructive pulmonary disease. International Journal of Advances in Medicine, [S. l.], v. 8, n. 4, p. 505–510, 2021. DOI: 10.18203/2349-3933.ijam20210994. Disponível em: https://www.ijmedicine.com/index.php/ijam/article/view/2835. Acesso em: 2 jan. 2026.