NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 37,2008, Pages 2629-2632, doi:10.3321/j.issn:0376-2491.2008.37.008
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 37,2008, Pages 2647-2651, doi:10.3321/j.issn:0376-2491.2008.37.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 37,2008, Pages 2633-2635, doi:10.3321/j.issn:0376-2491.2008.37.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 37,2008, Pages 2614-2617, doi:10.3321/j.issn:0376-2491.2008.37.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 37,2008, Pages 2642-2646, doi:10.3321/j.issn:0376-2491.2008.37.011