Roger K. Cady, M.D. is the co-founder and director of the Headache Care Center and founder of Clinvest, a national clinical research organization. Dr. Cady has authored and co-authored over 200 peer-reviewed journal articles, books, chapters of books, and abstracts; most recently, Headache and Migraine Biology and Management (Academic Press, 2015) and Managing Migraine: A Healthcare Professional’s Guide to Collaborative Migraine Care and Managing Migraine: A Patient’s Guide to Successful Migraine Care (Baxter Publishing, 2008). He was instrumental in developing the early intervention paradigm for treatment of acute migraine and defining "sinus headache" as a common presentation of migraine. Dr. Cady has presented countless lectures and seminars around the world on headache and other chronic disorders, and continues to be the principal investigator for numerous multi-center studies.