1. The Department of Cell Biology, Yale University School of Medicine (M.A., R.B.), New Haven, Connecticut 06510
2. Department of Trauma Surgery, Hamburg University School of Medicine (M.A., M.P., T.H., J.M.R.), Hamburg, Germany
3. The Endocrine Unit, Massachusetts General Hospital, Harvard Medical School (K.C., M.B.D.), Boston, Massachusetts 02114