INTERNATIONAL JOURNAL OF RESPIRATION, Volume 28, Issue 5,2008, Pages 297-300, doi:10.3760/cma.j.issn.1673-436X.2008.05.012
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INTERNATIONAL JOURNAL OF RESPIRATION, Volume 28, Issue 5,2008, Pages 257-260, doi:10.3760/cma.j.issn.1673-436X.2008.05.001
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 28, Issue 5,2008, Pages 311-314, doi:10.3760/cma.j.issn.1673-436X.2008.05.016
INTERNATIONAL JOURNAL OF RESPIRATION, Volume 28, Issue 5,2008, Pages 281-284, doi:10.3760/cma.j.issn.1673-436X.2008.05.008