| http://www.w3.org/ns/prov#value | - BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a side view of sequentially aligned vertebral bodies, such as are found in the cervical, thoracic and lumbar spine, and a posterior prosthetic spinal disc located between the vertebral bodies; FIG. 1B is a top view of one embodiment of a prosthetic spinal disc of the present invention; FIGS. 2A-B illustrate a surgical approach that may be used for inser
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