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Robert Cowan Author & Editor

Mark W. Green MD, FAAN Professor of Neurology, Anesthesiology, and Rehabilitation MedicineDirector of Headache and Pain MedicineIcahn School of Medicine at Mt Sinai
Robert Cowan, MDDirector, Stanford Headache and Facial Pain ClinicDepartment of Neurology & Neurological SciencesStanford School of MedicineStanford, CA Frederick G. Freitag, DOAssociate Professor NeurologyMedical College of WisconsinMilwaukee, WI