NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 38,2008, Pages 2667-2671, doi:10.3321/j.issn:0376-2491.2008.38.002
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 38,2008, Pages 2710-2714, doi:10.3321/j.issn:0376-2491.2008.38.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 38,2008, Pages 2675-2678, doi:10.3321/j.issn:0376-2491.2008.38.004
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 38,2008, Pages 2728-2729, doi:10.3321/j.issn:0376-2491.2008.38.017
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 88, Issue 38,2008, Pages 2715-2718, doi:10.3321/j.issn:0376-2491.2008.38.013