JOURNAL OF CLINICAL REHABILITATIVE TISSUE ENGINEERING RESEARCH, Volume 13, Issue 40,2009, Pages 7985-7990, doi:10.3969/j.issn.1673-8225.2009.40.036
SHANDONG MEDICAL JOURNAL, Volume 49, Issue 40,2009, Pages 44-45, doi:10.3969/j.issn.1002-266X.2009.40.020
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 89, Issue 40,2009, Pages 2831-2834, doi:10.3760/cma.j.issn.0376-2491.2009.40.006
SHANDONG MEDICAL JOURNAL, Volume 49, Issue 40,2009, Pages 5-7, doi:10.3969/j.issn.1002-266X.2009.40.003
SHANDONG MEDICAL JOURNAL, Volume 49, Issue 40,2009, Pages 3-4, doi:10.3969/j.issn.1002-266X.2009.40.002