About: http://webisa.webdatacommons.org/416311079

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	Doctors often have to wait until serious symptoms occur, such as chest pain or heart attacks, before they are aware of a problem, and many times that is too late.
http://www.w3.org/ns/prov#wasQuotedFrom	medicalxpress.com