NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 44,2009, Pages 3147-3150, doi:10.3760/cma.j.issn.0376-2491.2009.44.014
SHANDONG MEDICAL JOURNAL, Volume 49, Issue 44,2009, Pages 17, doi:10.3969/j.issn.1002-266X.2009.44.058
SHANDONG MEDICAL JOURNAL, Volume 49, Issue 44,2009, Pages 30-32, doi:10.3969/j.issn.1002-266X.2009.44.012
SHANDONG MEDICAL JOURNAL, Volume 49, Issue 44,2009, Pages 68-69, doi:10.3969/j.issn.1002-266X.2009.44.033
SHANDONG MEDICAL JOURNAL, Volume 49, Issue 44,2009, Pages 18-19, doi:10.3969/j.issn.1002-266X.2009.44.007