NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 17,2008, Pages 1192-1196, doi:10.3321/j.issn:0376-2491.2008.17.010
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 17,2008, Pages 1181-1184, doi:10.3321/j.issn:0376-2491.2008.17.007
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 17,2008, Pages 1168-1172, doi:10.3321/j.issn:0376-2491.2008.17.004
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 17,2008, Pages 1217-1220, doi:10.3321/j.issn:0376-2491.2008.17.016
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 17,2008, Pages 1202-1205, doi:10.3321/j.issn:0376-2491.2008.17.012