International Journal of Respiration, Volume 34, Issue z1,2014, Pages 79-83, doi:10.3760/cma.j.issn.1673-436X.2014.s1.017
International Journal of Respiration, Volume 34, Issue z1,2014, Pages 34-40, doi:10.3760/cma.j.issn.1673-436X.2014.s1.009
International Journal of Respiration, Volume 34, Issue z1,2014, Pages 89-92, doi:10.3760/cma.j.issn.1673-436X.2014.s1.019
International Journal of Respiration, Volume 34, Issue z1,2014, Pages 27-29, doi:10.3760/cma.j.issn.1673-436X.2014.s1.007