INTERNATIONAL JOURNAL OF RESPIRATION, Volume 31, Issue 9,2011, Pages 700-703, doi:10.3760/cma.j.issn.1673-436X.2011.009.015
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 31, Issue 9,2011, Pages 668-671, doi:10.3760/cma.j.issn.1673-436X.2011.009.008
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 31, Issue 9,2011, Pages 682-687, doi:10.3760/cma.j.issn.1673-436X.2011.009.011
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 31, Issue 9,2011, Pages 708-711, doi:10.3760/cma.j.issn.1673-436X.2011.009.017
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 31, Issue 9,2011, Pages 648-650, doi:10.3760/cma.j.issn.1673-436X.2011.009.003