NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 18,2009, Pages 1230-1233, doi:10.3760/cma.j.issn.0376-2491.2009.18.004
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 18,2009, Pages 1225-1226, doi:10.3760/cma.j.issn.0376-2491.2009.18.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 18,2009, Pages 1294, doi:10.3760/cma.j.issn.0376-2491.2009.18.022
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 18,2009, Pages 1272-1274, doi:10.3760/cma.j.issn.0376-2491.2009.18.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 18,2009, Pages 1278-1280, doi:10.3760/cma.j.issn.0376-2491.2009.18.017