电子T1痰inducti RT老杂志文章on in severe exacerbations of asthma: safety of a modified method JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 979 OP 980 DO 10.1183/09031936.00029511 VO 38 IS 4 A1 Vieira, M.O. A1 Pizzichini, E. A1 Marques Steidle, L.J. A1 Kadletz da Silva, J. A1 Pizzichini, M.M.M. YR 2011 UL //www.qdcxjkg.com/content/38/4/979.abstract AB