NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 11,2007, Pages 721-724, doi:10.3760/j:issn:0376-2491.2007.11.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 11,2007, Pages 757-759, doi:10.3760/j:issn:0376-2491.2007.11.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 11,2007, Pages 745, doi:10.3760/j:issn:0376-2491.2007.11.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 11,2007, Pages 754-756, doi:10.3760/j:issn:0376-2491.2007.11.008
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 11,2007, Pages 760-762, doi:10.3760/j:issn:0376-2491.2007.11.010