NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 26,2011, Pages 1834-1836, doi:10.3760/cma.j.issn.0376-2491.2011.26.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 26,2011, Pages 1840-1842, doi:10.3760/cma.j.issn.0376-2491.2011.26.013
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 26,2011, Pages 1847-1851, doi:10.3760/cma.j.issn.0376-2491.2011.26.016
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 26,2011, Pages 1861-1865, doi:10.3760/cma.j.issn.0376-2491.2011.26.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 26,2011, Pages 1870-1872, doi:10.3760/cma.j.issn.0376-2491.2011.26.021