NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 32,2008, Pages 2257, doi:10.3321/j.issn:0376-2491.2008.32.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 32,2008, Pages 2285-2289, doi:10.3321/j.issn:0376-2491.2008.32.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 32,2008, Pages 2250-2253, doi:10.3321/j.issn:0376-2491.2008.32.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 32,2008, Pages 2263-2266, doi:10.3321/j.issn:0376-2491.2008.32.008
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 32,2008, Pages 2258-2262, doi:10.3321/j.issn:0376-2491.2008.32.007