International Journal of Respiration, Volume 38, Issue 2,2018, Pages 156-160, doi:10.3760/cma.j.issn.1673-436X.2018.02.017
International Journal of Respiration, Volume 38, Issue 2,2018, Pages 86-90, doi:10.3760/cma.j.issn.1673-436X.2018.02.002
International Journal of Respiration, Volume 38, Issue 2,2018, Pages 101-108, doi:10.3760/cma.j.issn.1673-436X.2018.02.005
International Journal of Respiration, Volume 38, Issue 2,2018, Pages 142-146, doi:10.3760/cma.j.issn.1673-436X.2018.02.014
International Journal of Respiration, Volume 38, Issue 2,2018, Pages 91-95, doi:10.3760/cma.j.issn.1673-436X.2018.02.003