NATIONAL MEDICAL JOURNAL OF CHINA, Volume 90, Issue 30,2010, Pages 2126-2129, doi:10.3760/cma.j.issn.0376-2491.2010.30.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 90, Issue 30,2010, Pages 2153-2156, doi:10.3760/cma.j.issn.0376-2491.2010.30.017
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NATIONAL MEDICAL JOURNAL OF CHINA, Volume 90, Issue 30,2010, Pages 2089-2091, doi:10.3760/cma.j.issn.0376-2491.2010.30.001