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76. Dr. Clark applied a cranial halo to Gordon to stabilize the cervical spine in preparation for x-rays and subsequent surgery. The scalp was sterilized and local anesthesia injected over the pin insertion sites. Posterior and anterior cranial pins are inserted and the halo device attached. A. 20664 C. 20661. B. 20661, 90782 D. 20664, 90782. 77. ................
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