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A. Radiograph of the ACL stained with PTA for 15 hours. B. Radiograph of the ACL stained with PTA for 150 hours. Scale bar = 5 mm. The white boxes show the area the transmission profiles are plotted over. C. Plot of the transmission of X-rays through the centre of the ACL radiographs. The lower average transmission in the sample stained for 150 hours indicates a greater attenuation of X-rays.
