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From the University of Texas Southwestern Medical Center, Dallas (B.M.C.), the University
of Texas Medical Branch, Galveston (G.S.), and the University of Texas Health Science
Center at Houston, McGovern Medical School-Children's Memorial Hermann Hospital, Houston
(B.S.) - all in Texas; George Washington University Biostatistics Center, Washington,
DC (E.A.T.); Northwestern University, Chicago (A.M.P.); the University of Utah Health
Sciences Center, Salt Lake City (M.W.V.); Wayne State University, Detroit (Y.S.);
the National Institute of Neurological Disorders and Stroke (D.G.H.) and the Eunice
Kennedy Shriver National Institute of Child Health and Human Development (U.M.R.),
Bethesda, MD; Columbia University, New York (R.J.W.); the University of North Carolina
at Chapel Hill, Chapel Hill (J.M.T.); the University of Alabama at Birmingham, Birmingham
(A.T.N.T.); Brown University, Providence, RI (D.J.R.); Ohio State University, Columbus
(J.D.I.), and MetroHealth Medical Center-Case Western Reserve University, Cleveland
(B.M.M.) - both in Ohio; Oregon Health and Science University, Portland (J.T.); University
of Pittsburgh, Pittsburgh (S.N.C.); and the Medical University of South Carolina,
Charleston (J.P.V.).