NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 18,2006, Pages 1274-1278, doi:10.3760/j:issn:0376-2491.2006.18.013
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 18,2006, Pages 1289-1292, doi:10.3760/j:issn:0376-2491.2006.18.016
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 18,2006, Pages 1284-1288, doi:10.3760/j:issn:0376-2491.2006.18.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 18,2006, Pages 1265-1268, doi:10.3760/j:issn:0376-2491.2006.18.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 86, Issue 18,2006, Pages 1225-1226, doi:10.3760/j:issn:0376-2491.2006.18.001