NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 12,2008, Pages 823-825, doi:10.3321/j.issn:0376-2491.2008.12.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 12,2008, Pages 861-863, doi:10.3321/j.issn:0376-2491.2008.12.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 12,2008, Pages 809-811, doi:10.3321/j.issn:0376-2491.2008.12.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 12,2008, Pages 793-796, doi:10.3321/j.issn:0376-2491.2008.12.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 12,2008, Pages 835-839, doi:10.3321/j.issn:0376-2491.2008.12.012