About: http://webisa.webdatacommons.org/128676685

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	Secondary headache is associated with an underlying condition such as cerebrovascular disease, head trauma, infection, tumor and metabolic disorders (e.g., diabetes, thyroid disease).
http://www.w3.org/ns/prov#wasQuotedFrom	healthcommunities.com