INTERNATIONAL JOURNAL OF RESPIRATION, Volume 29, Issue 18,2009, Pages 1093-1096, doi:10.3760/cma.j.issn.1673-436X.2009.018.002
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 29, Issue 18,2009, Pages 1097-1099, doi:10.3760/cma.j.issn.1673-436X.2009.018.003
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 29, Issue 18,2009, Pages 1146-1148, doi:10.3760/cma.j.issn.1673-436X.2009.018.014
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 29, Issue 18,2009, Pages 1132-1136, doi:10.3760/cma.j.issn.1673-436X.2009.018.011
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 29, Issue 18,2009, Pages 1120-1126, doi:10.3760/cma.j.issn.1673-436X.2009.018.009