NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 45,2009, Pages 3181-3185, doi:10.3760/cma.j.issn.0376-2491.2009.45.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 45,2009, Pages 3176-3180, doi:10.3760/cma.j.issn.0376-2491.2009.45.004
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 45,2009, Pages 3169-3170, doi:10.3760/cma.j.issn.0376-2491.2009.45.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 45,2009, Pages 3215-3219, doi:10.3760/cma.j.issn.0376-2491.2009.45.013
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 45,2009, Pages 3212-3214, doi:10.3760/cma.j.issn.0376-2491.2009.45.012