[1] UAB Epilepsy Ctr, Birmingham, AL USA
[2] Univ Alabama, Sch Publ Hlth, Hlth Care Org & Policy, Birmingham, AL 35294 USA
[3] Univ Alabama, Sch Publ Hlth, Div Neurol Surg, Birmingham, AL 35294 USA
[4] Univ Alabama, Div Child Neurol, Birmingham, AL USA
[5] Univ Alabama, Div Pediat Neurol Surg, Birmingham, AL USA