About: http://webisa.webdatacommons.org/423458340

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 distal portion of the tethering catheter is constructed of a semi-rigid biologically inert material such as silicone, polyvinyl, polyethylene, polypropylene, or polyurethane.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es