1. From the Departments of Surgery (Emergency Medicine) (R.B.L., D.F.E.S.) Medicine (Allergy and Immunology) (L.B.), and Neurology and the Zeenat Qureshi Stroke Research Center (A.I.Q.), University of Medicine and Dentistry of New Jersey, Newark; the Department of Statistics (D.A.D.), North Carolina State University, Raleigh; and the Office of Medical and Professional Affairs (R.B.L., V.D.), New York City Health and Hospitals Corporation, New York.