title: Headaches and neuroimaging: high utilization and costs despite guidelines.
authors.affiliation: Department of Neurology, University of Michigan Health System, Ann Arbor.
authors.forename: Brian C
authors.initials: BC
authors.lastname: Callaghan
authors.affiliation: Department of Neurology, University of Michigan Health System, Ann Arbor.
authors.forename: Kevin A
authors.initials: KA
authors.lastname: Kerber
authors.affiliation: Department of Neurology, University of Michigan Health System, Ann Arbor.
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Pace
authors.affiliation: Department of Neurology, University of Michigan Health System, Ann Arbor.
authors.forename: Lesli E
authors.initials: LE
authors.lastname: Skolarus
authors.affiliation: Department of Neurology, University of Michigan Health System, Ann Arbor2Department of Veterans Affairs Center for Clinical Management Research, Ann Arbor, Michigan.
authors.forename: James F
authors.initials: JF
authors.lastname: Burke
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D019983:Guideline Adherence; D020773:Headache Disorders / Q000175:diagnosis*; D017048:Health Care Costs; D006801:Humans; D008297:Male; D008875:Middle Aged; D059906:Neuroimaging / Q000191:economics / Q000706:statistics & numerical data* / Q000639:trends; D017410:Practice Guidelines as Topic; D010818:Practice Patterns, Physicians' / Q000706:statistics & numerical data*; D014481:United States