1. Departments of Endocrinology and Metabolism (R.E., D.V., A.B., C.R., A.P.), University Hospital of Pisa, 56100 Pisa, Italy
2. Surgery (P.M., C.U., C.L., R.G., F.B.), University Hospital of Pisa, 56100 Pisa, Italy
3. AMBISEN Center (A.P.), High Technology Center for the Study of the Environmental Damage of the Endocrine and Nervous Systems, University of Pisa, 56124 Pisa, Italy