International Journal of Respiration, Volume 37, Issue 20,2017, Pages 1561-1564, doi:10.3760/cma.j.issn.1673-436X.2017.20.009
International Journal of Respiration, Volume 37, Issue 20,2017, Pages 1575-1581, doi:10.3760/cma.j.issn.1673-436X.2017.20.012
International Journal of Respiration, Volume 37, Issue 20,2017, Pages 1571-1574, doi:10.3760/cma.j.issn.1673-436X.2017.20.011
International Journal of Respiration, Volume 37, Issue 20,2017, Pages 1526-1531, doi:10.3760/cma.j.issn.1673-436X.2017.20.002
International Journal of Respiration, Volume 37, Issue 20,2017, Pages 1597-1600, doi:10.3760/cma.j.issn.1673-436X.2017.20.016