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 479-484, doi:10.3760/j:issn:0376-2491.2007.07.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 7,2007, Pages 468-470, doi:10.3760/j:issn:0376-2491.2007.07.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 7,2007, Pages 442-447, doi:10.3760/j:issn:0376-2491.2007.07.003
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 7,2007, Pages 467, doi:10.3760/j:issn:0376-2491.2007.07.018