About: http://webisa.webdatacommons.org/184070674

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	Since the overall purpose of our study was to compare the patients with and without headache, we felt that the lack of quantification should not affect the end points of our study.
http://www.w3.org/ns/prov#wasQuotedFrom	pubmedcentralcanada.ca