nd Severe Headaches in the United States: A Review of Statistics from National Surveillance Stud- ies," Headache 53, no. 3 (Mar 7,2013): 427-36. 62 L. D. Goldberg, "The Cost of Migraine and its Treatment," American Journal of Managed Care 11, no. 2 suppL (Jun 2005): S62-67. 63 David G. Simons, MD, Janet G. Tr