NATIONAL MEDICAL JOURNAL OF CHINA, Volume 90, Issue 9,2010, Pages 628-632, doi:10.3760/cma.j.issn.0376-2491.2010.09.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 90, Issue 9,2010, Pages 647-648, doi:10.3760/cma.j.issn.0376-2491.2010.09.020
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 90, Issue 9,2010, Pages 610-613, doi:10.3760/cma.j.issn.0376-2491.2010.09.010
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 90, Issue 9,2010, Pages 579-583, doi:10.3760/cma.j.issn.0376-2491.2010.09.002