INTERNATIONAL JOURNAL OF RESPIRATION, Volume 30, Issue 17,2010, Pages 1074-1080, doi:10.3760/cma.j.issn.1673-436X.2010.017.012
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 30, Issue 17,2010, Pages 1058-1062, doi:10.3760/cma.j.issn.1673-436X.2010.017.009
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 30, Issue 17,2010, Pages 1086-1088, doi:10.3760/cma.j.issn.1673-436X.2010.017.014
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 30, Issue 17,2010, Pages 1045-1049, doi:10.3760/cma.j.issn.1673-436X.2010.017.006