1. Section of Endocrinology, Department of Biomedical Sciences and Advanced Therapies (M.C.Z., D.P., A.B., M.R.A., A.M., E.C.d.U.), 44100 Ferrara, Italy;
2. Division of Neurosurgery (R.P.), Hospital of Ferrara, 44100 Ferrara, Italy;
3. Division of Neurosurgery (M.S.), Hospital of Padova, 35100 Padova, Italy;
4. Biomeasure Incorporated/IPSEN (J.E.T., M.D.C.), Milford, Massachusetts 01757-3650
5. Department of Experimental and Diagnostic Medicine, Section of Anatomic Pathology (L.C.), University of Ferrara, 44100 Ferrara, Italy;