Fig. 3

Expression of VEGF in the tendon–bone interface, Streptavidin/peroxidase method, DAB color, ×200. a Expression of VEGF in the tendon–bone interface of negative pressure group. b Expression of VEGF in the tendon–bone interface of control group
Expression of VEGF in the tendon–bone interface, Streptavidin/peroxidase method, DAB color, ×200. a Expression of VEGF in the tendon–bone interface of negative pressure group. b Expression of VEGF in the tendon–bone interface of control group