About: http://webisa.webdatacommons.org/389483766

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	Metal skull clamps, wires in the surgical drape, and instruments such as retractors or specula for transnasal surgery cause considerable interference with the EM field, even if they are MRI compatible and made of titanium.
http://www.w3.org/ns/prov#wasQuotedFrom	lww.com