1. Neuroendocrine Unit (P.K.F., A.K.), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114
2. Department of Orthopedics and Rehabilitation (M.C.H.), Yale University School of Medicine, New Haven, Connecticut 06520
3. Departments of Molecular and Integrative Physiology, and Internal Medicine (O.A.M., E.L.S.), University of Michigan Medical School, Ann Arbor, Michigan 48105
4. Section of Comparative Medicine (M.S.R.), Yale University School of Medicine, New Haven, Connecticut 06520
5. Maine Medical Center Research Institute (C.J.R.), Scarborough, Maine 04074