NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 39,2008, Pages 2792-2794, doi:10.3321/j.issn:0376-2491.2008.39.016
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 39,2008, Pages 2751-2754, doi:10.3321/j.issn:0376-2491.2008.39.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 39,2008, Pages 2783-2785, doi:10.3321/j.issn:0376-2491.2008.39.013
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 39,2008, Pages 2771-2774, doi:10.3321/j.issn:0376-2491.2008.39.010
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 39,2008, Pages 2767-2770, doi:10.3321/j.issn:0376-2491.2008.39.009