INTERNATIONAL JOURNAL OF RESPIRATION, Volume 29, Issue 17,2009, Pages 1050-1053, doi:10.3760/cma.j.issn.1673-436X.2009.017.007
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 29, Issue 17,2009, Pages 1054-1057, doi:10.3760/cma.j.issn.1673-436X.2009.017.008
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 29, Issue 17,2009, Pages 1062-1064, doi:10.3760/cma.j.issn.1673-436X.2009.017.010
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 29, Issue 17,2009, Pages 1041-1045, doi:10.3760/cma.j.issn.1673-436X.2009.017.005
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 29, Issue 17,2009, Pages 1086-1088, doi:10.3760/cma.j.issn.1673-436X.2009.017.017