About: http://webisa.webdatacommons.org/111187736

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	Typical symptoms include a pounding headache; lowered pain threshold; hypersensitivity to mild stimuli including sound and touch; and aura, which Pt????ek describes as a visual sensation that presages the headache to come.
http://www.w3.org/ns/prov#wasQuotedFrom	eurekalert.org