1. Department of Medicine and Experimental Oncology (P.M., S.M.d.C., S.M., D.S., F.R., F.V.), Division of Internal Medicine and Hypertension Unit, University of Torino, 10126 Torino, Italy
2. Clinical Chemistry Laboratory (M.M., G.M.), San Giovanni Battista University Hospital, 10126 Torino, Italy
3. Department of Clinical and Biological Sciences (M.T.), Division of Internal Medicine 1, University of Torino, San Luigi Hospital, 10043 Orbassano, Italy
4. Division of Endocrinology (E.P.G.-S., C.E.G.-S.), G.V. (Sonny) Montgomery VA Medical Center and University of Mississippi Medical Center, Jackson, Mississippi 39216