International Journal of Respiration, Volume 34, Issue 18,2014, Pages 1435-1438, doi:10.3760/cma.j.issn.1673-436X.2014.18.017
International Journal of Respiration, Volume 34, Issue 18,2014, Pages 1393-1397, doi:10.3760/cma.j.issn.1673-436X.2014.18.009
International Journal of Respiration, Volume 34, Issue 18,2014, Pages 1361-1366, doi:10.3760/cma.j.issn.1673-436X.2014.18.001
International Journal of Respiration, Volume 34, Issue 18,2014, Pages 1414-1420, doi:10.3760/cma.j.issn.1673-436X.2014.18.013
International Journal of Respiration, Volume 34, Issue 18,2014, Pages 1371-1373, doi:10.3760/cma.j.issn.1673-436X.2014.18.003