About: http://webisa.webdatacommons.org/185765000

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	Headache is a common health problem that affects quality of life in an older population and imposes substantial economic costs.
http://www.w3.org/ns/prov#wasQuotedFrom	clinicaltrials.gov