About: http://webisa.webdatacommons.org/238403966

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	Rebound headaches frequently occur daily, can be very painful and are a common cause of chronic daily headache.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org