About: http://webisa.webdatacommons.org/254748171

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	Valve replacement surgery is usually indicated in patients who have been diagnosed with severe AS, regardless of symptoms, and especially if dyspnea, angina, or syncope is present.
http://www.w3.org/ns/prov#wasQuotedFrom	healthcommunities.com