1. The Neuroendocrine Unit, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts (D.D.N., F.G., I.R., K.B., L.B.N.)
2. The Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts (M.M., P.S.J., B.S.)
3. The Division of Rheumatology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts (S.S.).