NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 48,2009, Pages 3425-3429, doi:10.3760/cma.j.issn.0376-2491.2009.48.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 48,2009, Pages 3451-3453, doi:10.3760/cma.j.issn.0376-2491.2009.48.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 48,2009, Pages 3444-3447, doi:10.3760/cma.j.issn.0376-2491.2009.48.016
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 48,2009, Pages 3409-3412, doi:10.3760/cma.j.issn.0376-2491.2009.48.008
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 48,2009, Pages 3417-3419, doi:10.3760/cma.j.issn.0376-2491.2009.48.010