1. From the Departments of Neurology and The Neuroscience Institute (A.T.S., B.K., D.W., D.K., K.A., R.M., J.S., J.B.), Emergency Medicine and The Neuroscience Institute (A.P., E.J.), Environmental Health (J.K., R.S.), and the Institute for Health Policy and Health Services Research (C.M.), University of Cincinnati, Cincinnati, Ohio; and the Jewish Hospital (J.G.), Louisville, Kentucky.