NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 40,2008, Pages 2812-2813, doi:10.3321/j.issn:0376-2491.2008.40.002
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 40,2008, Pages 2880, doi:10.3321/j.issn:0376-2491.2008.40.019
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 40,2008, Pages 2842-2844, doi:10.3321/j.issn:0376-2491.2008.40.010
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 40,2008, Pages 2862-2866, doi:10.3321/j.issn:0376-2491.2008.40.015