1. Harvard Kennedy School of Government, Cambridge, Massachusetts (M.A.)
2. Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts (F.C.S.)
3. Massachusetts Institute of Technology, Cambridge, Massachusetts (A.B., B.A.O., A.S., P.V.)
4. Harvard University, Cambridge, Massachusetts (E.B.)
5. Stanford University, Stanford, California (A.G.C., S.E.)
6. Yale University, New Haven, Connecticut (P.G.)
7. Harvard Medical School and Massachusetts General Hospital, Boston, Massachusetts, and McLean Hospital, Department of Psychiatry, Belmont, Massachusetts (L.O.)
8. Harvard Medical School and Massachusetts General Hospital for Children, Boston, Massachusetts (C.T.)
9. Massachusetts Institute of Technology, Cambridge, Massachusetts, and Massachusetts General Hospital, Boston, Massachusetts (E.D.).