International Journal of Respiration, Volume 34, Issue 24,2014, Pages 1900-1904, doi:10.3760/cma.j.issn.1673-436X.2014.24.016
International Journal of Respiration, Volume 34, Issue 24,2014, Pages 1882-1885, doi:10.3760/cma.j.issn.1673-436X.2014.24.012
International Journal of Respiration, Volume 34, Issue 24,2014, Pages 1871-1874, doi:10.3760/cma.j.issn.1673-436X.2014.24.009
International Journal of Respiration, Volume 34, Issue 24,2014, Pages 1879-1881, doi:10.3760/cma.j.issn.1673-436X.2014.24.011
International Journal of Respiration, Volume 34, Issue 24,2014, Pages 1849-1850, doi:10.3760/cma.j.issn.1673-436X.2014.24.003