Clinical policy for the initial approach to adolescents and adults presenting to the emergency department with a chief complaint of headache

E. E. Smith, S. V. Cantrill, W. C. Dalsey, F. M. Fesmire, E. J. Gallagher, A. S. Jagoda, S. Karas, M. Leibovich, D. Mackey, G. W. Molzen, B. A. Murphy, M. P. Pietrzak, D. G. Sayers