We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleDirect costs of preventive headache treatments: comparison of behavioral and pharmacologic approaches.AuthorsSchafer AM; Rains JC; Penzien DB; Groban L; Smitherman TA; Houle TTPublicationHeadache, 2011, Vol 51, Issue 6, p985ISSN1526-4610Publication typearticleDOI10.1111/j.1526-4610.2011.01905.x