About: http://webisa.webdatacommons.org/323835448

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	It is desirable that deterioration of material performance due to calcification and/or environmental stress cracking of the stent and the hood of the heart valve, and particularly of the leaflets, be suppressed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com