Effect of Inhaled Magnesium Sulphate on Bronchodilating Response, Levels of Substance P and Clinical Improvement of Acute Exacerbations COPD Patients. Jurnal Respirologi Indonesia, [S. l.], v. 38, n. 1, p. 16–23, 2018. DOI: 10.36497/jri.v38i1.135. Disponível em: http://www.jurnalrespirologi.org/index.php/jri/article/view/135. Acesso em: 4 jul. 2025.