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Prevention experiment reference measurements: example of microradiography of Sham, OVX, and OVX + PTH, treated with PTH at 6 weeks after operation. (a) Representative radiographs of femurs bones. (b) Radiographs following threshold analysis. PTH treatment increased the trabecular bone when compared with the Sham and the OVX controls. Slides were conducted with FAXITRON (a cabinet X-ray system, Hewlett-Packard).
