International Journal of Respiration, Volume 37, Issue 3,2017, Pages 198-201, doi:10.3760/cma.j.issn.1673-436X.2017.03.009
International Journal of Respiration, Volume 37, Issue 3,2017, Pages 183-188, doi:10.3760/cma.j.issn.1673-436X.2017.03.006
International Journal of Respiration, Volume 37, Issue 3,2017, Pages 210-215, doi:10.3760/cma.j.issn.1673-436X.2017.03.011
International Journal of Respiration, Volume 37, Issue 3,2017, Pages 189-193, doi:10.3760/cma.j.issn.1673-436X.2017.03.007
International Journal of Respiration, Volume 37, Issue 3,2017, Pages 173-177, doi:10.3760/cma.j.issn.1673-436X.2017.03.004