NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 11,2006, Pages 723, doi:10.3760/j:issn:0376-2491.2006.11.021
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 11,2006, Pages 749-752, doi:10.3760/j:issn:0376-2491.2006.11.008
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 11,2006, Pages 779-781, doi:10.3760/j:issn:0376-2491.2006.11.016
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 11,2006, Pages 766-770, doi:10.3760/j:issn:0376-2491.2006.11.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 11,2006, Pages 732-735, doi:10.3760/j:issn:0376-2491.2006.11.004