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Quantitative analysis of new bone area at 8 weeks.
Notes: The new bone area was calculated from the histological image using Image Pro Plus software. *P<0.05 versus empty; #P<0.05 versus PCL; ζP<0.05 versus SF/PCL 2/98.
Abbreviations: PCL, poly(ε-caprolactone); SF, silk fibroin.
