1. Institute of Oncology (L.A.M.C., G.C.), Policlinico, University Medical School
2. Experimental Oncology and Molecular Endocrinology Units, Palermo Branch of the National Cancer Institute of Genoa (L.A.M.C., A.T., O.M.G.), Cancer Hospital Center, Palermo, Italy
3. Max Planck Institute for Experimental Endocrinology (M.M.), Hannover, Germany
4. Institute of Urology (M.P.-M.), Policlinico, University Medical School
5. The Department of Obstetrics and Gynecology, Healthpartners for Environment and Health, St. Paul-Ramsey Medical Center (C.H.B.), St. Paul, Minnesota 55101-2595
6. GSF- National Research Center, Institute of Mammalian Genetics (J.A.), Neuherberg, Germany