NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 45,2007, Pages 3169-3170, doi:10.3760/j.issn:0376-2491.2007.45.001
JOURNAL OF CLINICAL REHABILITATIVE TISSUE ENGINEERING RESEARCH, Volume 11, Issue 45,2007, Pages 9213-9216, doi:10.3321/j.issn:1673-8225.2007.45.032
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 45,2007, Pages 3219-3223, doi:10.3760/j.issn:0376-2491.2007.45.013
JOURNAL OF CLINICAL REHABILITATIVE TISSUE ENGINEERING RESEARCH, Volume 11, Issue 45,2007, Pages 9201-9203, doi:10.3321/j.issn:1673-8225.2007.45.048