NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 15,2007, Pages 1009-1012, doi:10.3760/j:issn:0376-2491.2007.15.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 15,2007, Pages 1048-1052, doi:10.3760/j:issn:0376-2491.2007.15.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 15,2007, Pages 1077, doi:10.3760/j:issn:0376-2491.2007.15.022
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 15,2007, Pages 1075-1077, doi:10.3760/j:issn:0376-2491.2007.15.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 15,2007, Pages 1069-1071, doi:10.3760/j:issn:0376-2491.2007.15.016