About: http://webisa.webdatacommons.org/328554606

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	For instance, catheters may briefly contact the blood, while implants, such as heart valves and vascular grafts, may contact blood for a number of years.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk