About: http://webisa.webdatacommons.org/82792580

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	Alternatively, the tip 8 may have a radioactive isotope or other marker placed therein to permit the physician to ensure that the tip is immobilized and not contacting the vessel wall.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk