NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 6,2011, Pages 405-408, doi:10.3760/cma.j.issn.0376-2491.2011.06.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 6,2011, Pages 423-425, doi:10.3760/cma.j.issn.0376-2491.2011.06.016
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 6,2011, Pages 415-419, doi:10.3760/cma.j.issn.0376-2491.2011.06.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 6,2011, Pages 409-411, doi:10.3760/cma.j.issn.0376-2491.2011.06.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 6,2011, Pages 370-374, doi:10.3760/cma.j.issn.0376-2491.2011.06.003