NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 26,2009, Pages 1858-1861, doi:10.3760/cma.j.issn.0376-2491.2009.26.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 26,2009, Pages 1844-1846, doi:10.3760/cma.j.issn.0376-2491.2009.26.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 26,2009, Pages 1815-1819, doi:10.3760/cma.j.issn.0376-2491.2009.26.008
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 26,2009, Pages 1801-1802, doi:10.3760/cma.j.issn.0376-2491.2009.26.001