About: http://webisa.webdatacommons.org/214967960

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	The apertures are sized to receive a securing mechanism, such as a bone screw that is temporarily inserted into a patient's bone for holding the image tracker near the vicinity of a surgical site.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com