International Journal of Respiration, Volume 37, Issue 11,2017, Pages 877-880, doi:10.3760/cma.j.issn.1673-436X.2017.11.016
International Journal of Respiration, Volume 37, Issue 11,2017, Pages 820-823, doi:10.3760/cma.j.issn.1673-436X.2017.11.005
International Journal of Respiration, Volume 37, Issue 11,2017, Pages 854-858, doi:10.3760/cma.j.issn.1673-436X.2017.11.011
International Journal of Respiration, Volume 37, Issue 11,2017, Pages 863-867, doi:10.3760/cma.j.issn.1673-436X.2017.11.013
International Journal of Respiration, Volume 37, Issue 11,2017, Pages 824-829, doi:10.3760/cma.j.issn.1673-436X.2017.11.006