NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 20,2007, Pages 1384-1388, doi:10.3760/j:issn:0376-2491.2007.20.006
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 20,2007, Pages 1423-1424, doi:10.3760/j:issn:0376-2491.2007.20.016
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 20,2007, Pages 1440, doi:10.3760/j:issn:0376-2491.2007.20.024
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 20,2007, Pages 1420-1422, doi:10.3760/j:issn:0376-2491.2007.20.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 20,2007, Pages 1425-1426, doi:10.3760/j:issn:0376-2491.2007.20.017