International Journal of Respiration, , Issue 17,2015, Pages 1331-1334, doi:10.3760/cma.j.issn.1673-436X.2015.17.013
International Journal of Respiration, , Issue 17,2015, Pages 1357-1360, doi:10.3760/cma.j.issn.1673-436X.2015.17.019
International Journal of Respiration, , Issue 17,2015, Pages 1352-1356, doi:10.3760/cma.j.issn.1673-436X.2015.17.018
International Journal of Respiration, , Issue 17,2015, Pages 1285-1288, doi:10.3760/cma.j.issn.1673-436X.2015.17.002