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Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	One such method, for example, is disclosed in U.S. Pat. No. 6,530,929 of Justis et al., which utilizes two percutaneous access tubes for introducing an anchoring device, such as a spinal screw, into adjacent vertebrae.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com