NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 6,2009, Pages 397-399, doi:10.3760/cma.j.issn.0376-2491.2009.06.013
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 6,2009, Pages 361-362, doi:10.3760/cma.j.issn.0376-2491.2009.06.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 6,2009, Pages 366-370, doi:10.3760/cma.j.issn.0376-2491.2009.06.003
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 6,2009, Pages 430-432, doi:10.3760/cma.j.issn.0376-2491.2009.06.025
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 6,2009, Pages 409-411, doi:10.3760/cma.j.issn.0376-2491.2009.06.018