books.google.ca - The Cleveland Clinic Manual of Headache Therapy is a hands-on, practical guide to diagnosis, work-up, and treatment of common headache disorders. Each chapter is written by a Cleveland Clinic Headache Center care provider. The book uses an evidence-based approach to sift through the wealth of available...http://books.google.ca/books/about/The_Cleveland_Clinic_Manual_of_Headache.html?id=uaG08nAKG_wC&utm_source=gb-gplus-shareThe Cleveland Clinic Manual of Headache Therapy