Fig. 1From: Enhanced tendon–bone healing with acidic fibroblast growth factor delivered in collagen in a rabbit anterior cruciate ligament reconstruction modelHistological examination of representative week 4 specimen. a High aFGF/collagen (4 μg) treatment group. b Low aFGF/collagen (1 μg) treatment group. c Collagen alone group. d Control group. H&E staining, original magnification × 100Back to article page