NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 20,2011, Pages 1437-1438, doi:10.3760/cma.j.issn.0376-2491.2011.20.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 20,2011, Pages 1438, doi:10.3760/cma.j.issn.0376-2491.2011.20.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 20,2011, Pages 1440, doi:10.3760/cma.j.issn.0376-2491.2011.20.021
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 20,2011, Pages 1435-1436, doi:10.3760/cma.j.issn.0376-2491.2011.20.017
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 20,2011, Pages 1417-1421, doi:10.3760/cma.j.issn.0376-2491.2011.20.013