6.

Goel, V. K., Lim, T. H., Gwon, J., Chen, J. Y., Winterbottom, J. M., Park, J. B., Weinstein J. N., and Ahn, J. Y., 1991, “Effects of Rigidity of an Internal Fixation Device a Comprehensive Biomechanical Investigation,”

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, 16(3), pp. S155–S161. 10.1097/00007632-199103001-00023