NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 32,2011, Pages 2243-2246, doi:10.3760/cma.j.issn.0376-2491.2011.32.004
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 32,2011, Pages 2261-2263, doi:10.3760/cma.j.issn.0376-2491.2011.32.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 32,2011, Pages 2300-2302, doi:10.3760/cma.j.issn.0376-2491.2011.32.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 32,2011, Pages 2293-2296, doi:10.3760/cma.j.issn.0376-2491.2011.32.016
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 32,2011, Pages 2233-2235, doi:10.3760/cma.j.issn.0376-2491.2011.32.001