NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 11,2011, Pages 723-724, doi:10.3760/cma.j.issn.0376-2491.2011.11.003
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 11,2011, Pages 730-732, doi:10.3760/cma.j.issn.0376-2491.2011.11.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 11,2011, Pages 778-780, doi:10.3760/cma.j.issn.0376-2491.2011.11.017
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 11,2011, Pages 725-729, doi:10.3760/cma.j.issn.0376-2491.2011.11.004
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 91, Issue 11,2011, Pages 781-785, doi:10.3760/cma.j.issn.0376-2491.2011.11.018