1. Unit of Internal Medicine and Endocrinology (M.R., F.C., R.S., G.G., P.L., F.M., L.C.), I-27100 Pavia, Italy
2. Allergy and Immunology Unit (P.P.), Fondazione Salvatore Maugeri Istituto di Ricovero e Cura a Carattere Scientifico, Laboratory for Endocrine Disruptors, University of Pavia, I-27100 Pavia, Italy
3. Department of General and Minimally Invasive Surgery (L.L.), I-27100 Pavia, Italy
4. Department of Medical Sciences M. Aresu (S.M.), University of Cagliari and Endocrinology Unit, Azienda Ospedaliera Universitaria Cagliari, 09134 Cagliari, Italy