About: http://webisa.webdatacommons.org/166393841

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	Three previous scans in three different countries (South Africa, New Zeeland and Australia) showed there was an opening.They did find the origin of the clotting though: popliteal vein compression syndrome.
http://www.w3.org/ns/prov#wasQuotedFrom	phassociation.org