NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 38,2006, Pages 2721-2722, doi:10.3760/j:issn:0376-2491.2006.38.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 38,2006, Pages 2694, doi:10.3760/j:issn:0376-2491.2006.38.020
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 38,2006, Pages 2678, doi:10.3760/j:issn:0376-2491.2006.38.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 38,2006, Pages 2707-2710, doi:10.3760/j:issn:0376-2491.2006.38.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 38,2006, Pages 2669,2702, doi:10.3760/j:issn:0376-2491.2006.38.021