International Journal of Respiration, Volume 37, Issue 19,2017, Pages 1498-1502, doi:10.3760/cma.j.issn.1673-436X.2017.19.014
International Journal of Respiration, Volume 37, Issue 19,2017, Pages 1464-1467, doi:10.3760/cma.j.issn.1673-436X.2017.19.006
International Journal of Respiration, Volume 37, Issue 19,2017, Pages 1503-1506, doi:10.3760/cma.j.issn.1673-436X.2017.19.015
International Journal of Respiration, Volume 37, Issue 19,2017, Pages 1507-1510, doi:10.3760/cma.j.issn.1673-436X.2017.19.016
International Journal of Respiration, Volume 37, Issue 19,2017, Pages 1480-1484, doi:10.3760/cma.j.issn.1673-436X.2017.19.010