NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 21,2009, Pages 1463, doi:10.3760/cma.j.issn.0376-2491.2009.21.008
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 21,2009, Pages 1441-1443, doi:10.3760/cma.j.issn.0376-2491.2009.21.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 21,2009, Pages 1450-1454, doi:10.3760/cma.j.issn.0376-2491.2009.21.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 21,2009, Pages 1455-1459, doi:10.3760/cma.j.issn.0376-2491.2009.21.006
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 21,2009, Pages 1493-1497, doi:10.3760/cma.j.issn.0376-2491.2009.21.016