Equivalence of fusion rates after rigid internal fixation of the occiput to C-2 with or without C-1 instrumentation.
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M. Proctor | S. Lew | A. Avellino | A. Jea | Richard C. E. Anderson | D. Harter | T. Hankinson | D. Brockmeyer | T. Spinks | D. Pincus | Luis F. Rodriguez | D. Sacco