title: Diagnostic testing for chronic daily headache.
authors.affiliation: Jefferson Headache Clinic, Philadelphia, PA 19107-4824, USA.
authors.forename: Randolph W
authors.initials: RW
authors.lastname: Evans
authors.forename: Stephen D
authors.initials: SD
authors.lastname: Silberstein
mesh_terms: D000328:Adult; D002908:Chronic Disease; D005260:Female; D006261:Headache / Q000209:etiology*; D020773:Headache Disorders / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D020767:Intracranial Thrombosis / Q000150:complications*; D011559:Pseudotumor Cerebri / Q000150:complications* / Q000175:diagnosis