INTERNATIONAL JOURNAL OF RESPIRATION, Volume 26, Issue 8,2006, Pages 584-587, doi:10.3760/cma.j.issn.1673-436X.2006.08.008
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 26, Issue 8,2006, Pages 610-615, doi:10.3760/cma.j.issn.1673-436X.2006.08.015
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 26, Issue 8,2006, Pages 636-640, doi:10.3760/cma.j.issn.1673-436X.2006.08.021
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 26, Issue 8,2006, Pages 561-563, doi:10.3760/cma.j.issn.1673-436X.2006.08.001
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 26, Issue 8,2006, Pages 580-583, doi:10.3760/cma.j.issn.1673-436X.2006.08.007