1. Institute of Endocrinology (E.R.), University of Milan, 20133 Milan, Italy
2. Section of Endocrinology (R.R., G.T., F.B., M.R.A., E.C.d.U.), Department of Biochemical Sciences and Advanced Therapies, University of Ferrara, 44100 Ferrara, Italy
3. Radiotherapy Department (L.B.), Malpighi Hospital, 40100 Bologna, Italy
4. Section of Endocrinology, Diabetes, and Nutrition (E.N.P., L.E.B.), Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts 02118