Fig. 1.

Local Irradiation on left distal femur. (A) SARRP system. (B) Radiograph of left lower limb of a mouse that received local irradiation of the distal femur. Light rectangle indicates the beam of X-ray. (C) Femora collected from the mice 1 wk after irradiation. (D) Light micrographs of H&E staining performed on trabecular bone sections from proximal and distal femora of mice 1 wk and 4 wk after irradiation. Yellow cross indicates left proximal femur, green cross indicates irradiated area of left distal femur, yellow triangle indicates right proximal femur, and green triangle indicates right distal femur. L, left. R, right. (Scale bar: 100 μm.)