International Journal of Respiration, Volume 38, Issue 23,2018, Pages 1805-1809, doi:10.3760/cma.j.issn.1673-436X.2018.23.010
International Journal of Respiration, Volume 38, Issue 23,2018, Pages 1771-1774, doi:10.3760/cma.j.issn.1673-436X.2018.23.003
International Journal of Respiration, Volume 38, Issue 23,2018, Pages 1796-1800, doi:10.3760/cma.j.issn.1673-436X.2018.23.008
International Journal of Respiration, Volume 38, Issue 23,2018, Pages 1792-1795, doi:10.3760/cma.j.issn.1673-436X.2018.23.007
International Journal of Respiration, Volume 38, Issue 23,2018, Pages 1835-1840, doi:10.3760/cma.j.issn.1673-436X.2018.23.016