About: http://webisa.webdatacommons.org/268844178

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	In many clinical scenarios, it is impossible to be entirely confident that the symptoms, such as exertional angina and dyspnea, are secondary to valvular disease only and are not related to coronary disease.
http://www.w3.org/ns/prov#wasQuotedFrom	invasivecardiology.com