About: http://webisa.webdatacommons.org/433299102

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	Generally, the radio-opaque marker is a band or helically wound coil of a radio-opaque material such as platinum or a platinum-iridium alloy.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com