About: http://webisa.webdatacommons.org/201614124

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	As shown in figure 3, the number of ED visits with a first-listed headache diagnosis varied by month, and patterns were similar for migraine and other headaches.
http://www.w3.org/ns/prov#wasQuotedFrom	ahrq.gov