NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 24,2006, Pages 1689-1692, doi:10.3760/j:issn:0376-2491.2006.24.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 24,2006, Pages 1724-1725, doi:10.3760/j:issn:0376-2491.2006.24.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 24,2006, Pages 1671-1674, doi:10.3760/j:issn:0376-2491.2006.24.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 24,2006, Pages 1706-1709, doi:10.3760/j:issn:0376-2491.2006.24.013
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 24,2006, Pages 1674, doi:10.3760/j:issn:0376-2491.2006.24.021