INTERNATIONAL JOURNAL OF RESPIRATION, Volume 27, Issue 23,2007, Pages 1782-1785, doi:10.3760/cma.j.issn.1673-436X.2007.23.007
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 27, Issue 23,2007, Pages 1789-1792, doi:10.3760/cma.j.issn.1673-436X.2007.23.009
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 27, Issue 23,2007, Pages 1793-1795, doi:10.3760/cma.j.issn.1673-436X.2007.23.010
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 27, Issue 23,2007, Pages 1829-1832, doi:10.3760/cma.j.issn.1673-436X.2007.23.018
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 27, Issue 23,2007, Pages 1786-1788, doi:10.3760/cma.j.issn.1673-436X.2007.23.008