1. Department of Endocrine Section (M.F.H., R.M.B., T.C.C., E.K.K., A.A., A.D.T.), Department of Medicine, Boston University School of Medicine, Boston, Massachusetts 02118
2. Department of Mattapan Community Health Center (A.Y., D.B.), Mattapan, Massachusetts 02126
3. Department of Quest Diagnostics Nichols Institute (R.R., W.S.), San Juan Capistrano, California 92675