About: http://webisa.webdatacommons.org/12633271

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	Blockages or biliary obstruction can be caused by many factors, including liver disease, tumors, or trauma, but by far the most common type of biliary obstruction is caused by gall bladder stones.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com