NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 18,2008, Pages 1292-1294, doi:10.3321/j.issn:0376-2491.2008.18.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 18,2008, Pages 1227-1245, doi:10.3321/j.issn:0376-2491.2008.18.002
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 18,2008, Pages 1295, doi:10.3321/j.issn:0376-2491.2008.18.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 18,2008, Pages 1284-1288, doi:10.3321/j.issn:0376-2491.2008.18.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 18,2008, Pages 1246-1250, doi:10.3321/j.issn:0376-2491.2008.18.003