About: http://webisa.webdatacommons.org/170348800

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	Then, X-rays are taken after a contrast agent is injected into an artery to locate the narrowing, occlusions, and other abnormalities of specific arteries.
http://www.w3.org/ns/prov#wasQuotedFrom	ahealthyme.com