NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 46,2006, Pages 3245-3248, doi:10.3760/j:issn:0376-2491.2006.46.002
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 46,2006, Pages 3299-3301, doi:10.3760/j:issn:0376-2491.2006.46.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 46,2006, Pages 3249-3254, doi:10.3760/j:issn:0376-2491.2006.46.003
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 46,2006, Pages 3272-3276, doi:10.3760/j:issn:0376-2491.2006.46.008