NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 21,2007, Pages 1511-1512, doi:10.3760/j:issn:0376-2491.2007.21.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 21,2007, Pages 1493-1495, doi:10.3760/j:issn:0376-2491.2007.21.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 21,2007, Pages 1474-1477, doi:10.3760/j:issn:0376-2491.2007.21.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 21,2007, Pages 1496-1500, doi:10.3760/j:issn:0376-2491.2007.21.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 21,2007, Pages 1445-1447, doi:10.3760/j:issn:0376-2491.2007.21.002