International Journal of Respiration, Volume 33, Issue 18,2013, Pages 1407-1411, doi:10.3760/cma.j.issn.1673-436X.2013.018.012
International Journal of Respiration, Volume 33, Issue 18,2013, Pages 1365-1370, doi:10.3760/cma.j.issn.1673-436X.2013.018.002
International Journal of Respiration, Volume 33, Issue 18,2013, Pages 1412-1417, doi:10.3760/cma.j.issn.1673-436X.2013.018.013
International Journal of Respiration, Volume 33, Issue 18,2013, Pages 1429-1432, doi:10.3760/cma.j.issn.1673-436X.2013.018.017
International Journal of Respiration, Volume 33, Issue 18,2013, Pages 1402-1406, doi:10.3760/cma.j.issn.1673-436X.2013.018.011