Magnesium sulphate as a bronchodilator in asthma attacks in paediatric patients: A single-center observational study. Actas Médicas (Ecuador), [S. l.], v. 35, n. 2, p. 139–145, 2025. DOI: 10.61284/238. Disponível em: https://actasmedicas.ec/index.php/am/article/view/238.. Acesso em: 25 oct. 2026.