Media type: E-Article Title: Medication Overuse Headache in Canada Contributor: Becker, WJ; Purdy, RA imprint: SAGE Publications, 2008 Published in: Cephalalgia Language: English DOI: 10.1111/j.1468-2982.2008.01732.x ISSN: 0333-1024; 1468-2982 Keywords: Neurology (clinical) ; General Medicine Origination: Footnote: Access State: Open Access