NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 16,2008, Pages 1132-1136, doi:10.3321/j.issn:0376-2491.2008.16.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 16,2008, Pages 1088-1092, doi:10.3321/j.issn:0376-2491.2008.16.003
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 16,2008, Pages 1148-1151, doi:10.3321/j.issn:0376-2491.2008.16.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 16,2008, Pages 1137-1141, doi:10.3321/j.issn:0376-2491.2008.16.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 16,2008, Pages 1111-1113, doi:10.3321/j.issn:0376-2491.2008.16.009