NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 11,2008, Pages 721, doi:10.3321/j.issn:0376-2491.2008.11.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 11,2008, Pages 784-786, doi:10.3321/j.issn:0376-2491.2008.11.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 11,2008, Pages 730-732, doi:10.3321/j.issn:0376-2491.2008.11.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 11,2008, Pages 742-745, doi:10.3321/j.issn:0376-2491.2008.11.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 11,2008, Pages 781-783, doi:10.3321/j.issn:0376-2491.2008.11.018