NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 15,2008, Pages 1066-1068, doi:10.3321/j.issn:0376-2491.2008.15.014
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 15,2008, Pages 1055-1058, doi:10.3321/j.issn:0376-2491.2008.15.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 15,2008, Pages 1032-1035, doi:10.3321/j.issn:0376-2491.2008.15.006
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 15,2008, Pages 1076-1079, doi:10.3321/j.issn:0376-2491.2008.15.017
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 15,2008, Pages 1027-1031, doi:10.3321/j.issn:0376-2491.2008.15.005