作者:Lawrence C. Newman, MD, Director, Headache Division NYU Langone Health, Professor of Neurology, NYU Grossman School of Medicine, New York, NY, Morris Levin, MD, Professor, Department of Neurology University of California, San Francisco, San Francisco, CA, Rashmi B. Halker Singh, MD, FAHS, FAAN, Associate Professor of Neurology, Director, Headache Medicine Fellowship Program, Division of Headache Medicine, Department of Neurology, Mayo Clinic, Scottsdale, AZ, Rebecca L. Michael, MD, Assistant Cl