NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 6,2008, Pages 361-362, doi:10.3321/j.issn:0376-2491.2008.06.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 6,2008, Pages 365-368, doi:10.3321/j.issn:0376-2491.2008.06.003
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 6,2008, Pages 416-418, doi:10.3321/j.issn:0376-2491.2008.06.015
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 6,2008, Pages 374-377, doi:10.3321/j.issn:0376-2491.2008.06.005