1 From the Lexington Neurology (D.K.), Lexington Medical Center, West Columbia, SC; and Headache Medicine (C.H.G.), General Neurology (C.H.G.), Department of Neurology, Yale University.
2 From the Lexington Neurology (D.K.), Lexington Medical Center, West Columbia, SC; and Headache Medicine (C.H.G.), General Neurology (C.H.G.), Department of Neurology, Yale University. chris.gottschalk@yale.edu.