About: http://webisa.webdatacommons.org/9533728

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 most cases involving the cerebral blood vessels these are present from birth and are asymptomatic and unrelated to migraine or other headaches.
http://www.w3.org/ns/prov#wasQuotedFrom	headaches.org