<http://webisa.webdatacommons.org/prov/345300711>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/446265803> .
<http://webisa.webdatacommons.org/446265803>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/446265803>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<netai.net> .
<http://webisa.webdatacommons.org/446265803>	<http://www.w3.org/ns/prov#value>	"Rarely, imaging studies are used to make certain that your headaches are not caused by a problem other than migraines." .