1. Departments of Obstetrics and Gynecology (S.D., T.L.H.), Yale University School of Medicine, New Haven, Connecticut 06520;
2. Departments of Neurobiology (R.T.M., C.J.B., T.L.H.), Yale University School of Medicine, New Haven, Connecticut 06520;
3. Departments of Neurosurgery (P.P.), Yale University School of Medicine, New Haven, Connecticut 06520;
4. Departments of Neurology and Neuroscience, Weill Medical College of Cornell University (L.Y., M.F.B.), New York, New York 10021
5. Departments of Ophthalmology-Visual Science (C.J.B.), Yale University School of Medicine, New Haven, Connecticut 06520;