About: http://webisa.webdatacommons.org/146587390

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	However, once the surgeon has determined that the head is in the best position, it is then necessary to lock or fix the head relative to the shank and different types of structures have been previously developed for this purpose.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr