About: http://webisa.webdatacommons.org/14956673

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	Insomnia is a common symptom in patients with headache [43] and information on sleep disturbances is crucial in the clinical investigation of these patients [28].
http://www.w3.org/ns/prov#wasQuotedFrom	plos.org