About: http://webisa.webdatacommons.org/128647526

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	Headaches that have a sudden and severe onset can indicate a serious medical condition, such as stroke or meningitis, so establishing the nature of this type of head pain is critical.
http://www.w3.org/ns/prov#wasQuotedFrom	netplaces.com