About: http://webisa.webdatacommons.org/59938273

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 PFO closure devices may need to be capable of x-ray visualization and use with radiopaque fillers or marker bands fabricated from noble metals such as platinum or gold.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com