NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 7,2007, Pages 479-484, doi:10.3760/j:issn:0376-2491.2007.07.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 7,2007, Pages 438-441, doi:10.3760/j:issn:0376-2491.2007.07.002
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 7,2007, Pages 467, doi:10.3760/j:issn:0376-2491.2007.07.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 7,2007, Pages 489-492, doi:10.3760/j:issn:0376-2491.2007.07.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 7,2007, Pages 468-470, doi:10.3760/j:issn:0376-2491.2007.07.009