FOREIGN MEDICAL SCIENCES(SECTION OF RESPIRATORY SYSTEM), Volume 23, Issue 4,2003, Pages 189-193, doi:10.3760/cma.j.issn.1673-436X.2003.04.007
FOREIGN MEDICAL SCIENCES(SECTION OF RESPIRATORY SYSTEM), Volume 23, Issue 4,2003, Pages 201-203, doi:10.3760/cma.j.issn.1673-436X.2003.04.010
FOREIGN MEDICAL SCIENCES(SECTION OF RESPIRATORY SYSTEM), Volume 23, Issue 4,2003, Pages 215-218, doi:10.3760/cma.j.issn.1673-436X.2003.04.014
FOREIGN MEDICAL SCIENCES(SECTION OF RESPIRATORY SYSTEM), Volume 23, Issue 4,2003, Pages 219-222, doi:10.3760/cma.j.issn.1673-436X.2003.04.015
FOREIGN MEDICAL SCIENCES(SECTION OF RESPIRATORY SYSTEM), Volume 23, Issue 4,2003, Pages 177-179, doi:10.3760/cma.j.issn.1673-436X.2003.04.003