NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 28,2008, Pages 1983-1985, doi:10.3321/j.issn:0376-2491.2008.28.010
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 28,2008, Pages 1978-1982, doi:10.3321/j.issn:0376-2491.2008.28.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 28,2008, Pages 1970-1973, doi:10.3321/j.issn:0376-2491.2008.28.007
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 28,2008, Pages 1997-2001, doi:10.3321/j.issn:0376-2491.2008.28.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 28,2008, Pages 1948-1951, doi:10.3321/j.issn:0376-2491.2008.28.002