Figure 1. Effect of ESWT on proliferation, angiogenesis, and apoptosis in steroid-induced ONFH in rats. (A) blood supply assessed by micro-CT scanning; (B) CD31 staining in the femoral head; (C) Ki-67 staining in the femoral head; (D) TUNEL staining in the femoral head. (magnification, ×20) n=6 **P < .01, ***P < .001.