1. Department of Cell and Molecular Biology (M.P.F., E.T.M., A.B.K., M.H.-D.), Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611
2. Laboratory of Molecular and Cellular Neuroscience (T.M., J.-H.A., A.C.N.), The Rockefeller University, New York, New York 10021
3. Department of Psychiatry (A.C.N.), Yale University School of Medicine, New Haven, Connecticut 06508