About: http://webisa.webdatacommons.org/330068617

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	In the published cases the range of time from first symptom to diagnosis was wide, for example a case where 15 years lapsed until diagnosis (case 8 in reference (10)).
http://www.w3.org/ns/prov#wasQuotedFrom	severe-headache-expert.com