International Journal of Respiration, Volume 38, Issue 24,2018, Pages 1913-1916, doi:10.3760/cma.j.issn.1673-436X.2018.24.016
International Journal of Respiration, Volume 38, Issue 24,2018, Pages 1841-1845, doi:10.3760/cma.j.issn.1673-436X.2018.24.001
International Journal of Respiration, Volume 38, Issue 24,2018, Pages 1883-1887, doi:10.3760/cma.j.issn.1673-436X.2018.24.009
International Journal of Respiration, Volume 38, Issue 24,2018, Pages 1878-1882, doi:10.3760/cma.j.issn.1673-436X.2018.24.008
International Journal of Respiration, Volume 38, Issue 24,2018, Pages 1899-1903, doi:10.3760/cma.j.issn.1673-436X.2018.24.013