NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 20,2006, Pages 1430-1433, doi:10.3760/j:issn:0376-2491.2006.20.016
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 20,2006, Pages 1381-1385, doi:10.3760/j:issn:0376-2491.2006.20.004
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 20,2006, Pages 1440, doi:10.3760/j:issn:0376-2491.2006.20.021
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 20,2006, Pages 1405-1409, doi:10.3760/j:issn:0376-2491.2006.20.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 20,2006, Pages 1386-1389, doi:10.3760/j:issn:0376-2491.2006.20.005