International Journal of Respiration, Volume 33, Issue 14,2013, Pages 1083-1086, doi:10.3760/cma.j.issn.1673-436X.2013.014.010
International Journal of Respiration, Volume 33, Issue 14,2013, Pages 1096-1099, doi:10.3760/cma.j.issn.1673-436X.2013.014.013
International Journal of Respiration, Volume 33, Issue 14,2013, Pages 1074-1077, doi:10.3760/cma.j.issn.1673-436X.2013.014.008
International Journal of Respiration, Volume 33, Issue 14,2013, Pages 1087-1090, doi:10.3760/cma.j.issn.1673-436X.2013.014.011
International Journal of Respiration, Volume 33, Issue 14,2013, Pages 1118-1120, doi:10.3760/cma.j.issn.1673-436X.2013.014.018