Inhaled magnesium versus inhaled salbutamol in rescue treatment for moderate and severe asthma exacerbations in pediatric patients Michelle Siqueira Debiazzi; Rossano César Bonatto; Fábio Joly Campos; Joelma Gonçalves Martin; José Roberto Fioretto; Maria Letícia das Neves Hansen; Arthur Martins de Araújo Luz; Haroldo Teófilo de Carvalho;