1. From the Department of Neuropediatrics (E.K., C.W., B.W., B.L., M.S.), the NeuroCure Clinical Research Center (E.K., B.L., M.S.), the Department of Neuroradiology (G.B.), and the Center for Stroke Research (J.P.D.), Charité Universitätsmedizin Berlin, Berlin, Germany; and the Leibniz-Institute for Molecular Pharmacology and Max-Delbrueck-Center for Molecular Medicine (L.L.), Berlin, Germany.