NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 20,2008, Pages 1390-1393, doi:10.3321/j.issn:0376-2491.2008.20.006
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 20,2008, Pages 1418-1421, doi:10.3321/j.issn:0376-2491.2008.20.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 20,2008, Pages 1415-1417, doi:10.3321/j.issn:0376-2491.2008.20.013
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 20,2008, Pages 1440, doi:10.3321/j.issn:0376-2491.2008.20.020
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 20,2008, Pages 1412-1414, doi:10.3321/j.issn:0376-2491.2008.20.012