About: http://webisa.webdatacommons.org/81243599

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	A migraine is a severe type of headache that develops when enlarged blood vessels stimulate chemicals in the brain to wrap around the brain???s arteries.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeekhealth.com