About: http://webisa.webdatacommons.org/453751516

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	Prior art surgical devices are well known for disintegrating obstructions such as stones or concretions from the urinary track as well as plaque and sclerotic clots in other human ducts such as arteries.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es