NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 22,2007, Pages 1523-1526, doi:10.3760/j:issn:0376-2491.2007.22.004
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 22,2007, Pages 1535-1539, doi:10.3760/j:issn:0376-2491.2007.22.007
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 22,2007, Pages 1522, doi:10.3760/j:issn:0376-2491.2007.22.023
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 22,2007, Pages 1570-1575, doi:10.3760/j:issn:0376-2491.2007.22.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 22,2007, Pages 1563, doi:10.3760/j:issn:0376-2491.2007.22.022