INTERNATIONAL JOURNAL OF RESPIRATION, Volume 31, Issue 10,2011, Pages 796-798, doi:10.3760/cma.j.issn.1673-436X.2011.010.017
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 31, Issue 10,2011, Pages 782-784, doi:10.3760/cma.j.issn.1673-436X.2011.010.013
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 31, Issue 10,2011, Pages 726-730, doi:10.3760/cma.j.issn.1673-436X.2011.010.002
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 31, Issue 10,2011, Pages 788-792, doi:10.3760/cma.j.issn.1673-436X.2011.010.015