1. Section of Endocrinology (M.L.T., E.P., L.L., A.L., L.S., N.P., D.G., L.B.), 21100 Varese, Italy
2. Research Center in Epidemiology and Preventive Medicine (EPIMED) (G.V., M.F.), 21100 Varese, Italy
3. Department of Clinical and Experimental Medicine; and Department of Surgical and Morphological Sciences (C.A.), University of Insubria, 21100 Varese, Italy