WORLD JOURNAL OF GASTROENTEROLOGY, Volume 13, Issue 44,2007, Pages 5958,
JOURNAL OF CLINICAL REHABILITATIVE TISSUE ENGINEERING RESEARCH, Volume 11, Issue 44,2007, Pages 8844-8847, doi:10.3321/j.issn:1673-8225.2007.44.006
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 44,2007, Pages 3147, doi:10.3760/j.issn:0376-2491.2007.44.023
JOURNAL OF CLINICAL REHABILITATIVE TISSUE ENGINEERING RESEARCH, Volume 11, Issue 44,2007, Pages 9011-9015, doi:10.3321/j.issn:1673-8225.2007.44.033
JOURNAL OF CLINICAL REHABILITATIVE TISSUE ENGINEERING RESEARCH, Volume 11, Issue 44,2007, Pages 8891-8894, doi:10.3321/j.issn:1673-8225.2007.44.020