[1] Univ Brescia, Dept Internal Med, Brescia, Italy
[2] Univ Michigan, Med Ctr, Div Endocrinol & Metab, Ann Arbor, MI USA
[3] Bicetre Hosp, Dept Endocrinol, Le Kremlin Bicetre, France
[4] Bicetre Hosp, Dept Reprod Dis, Le Kremlin Bicetre, France
[5] Univ Paris 11, Le Kremlin Bicetre, France
[6] Queen Mary Univ, Barts & London Sch Med, St Bartholomews Hosp, Dept Endocrinol, London, England
[7] Stanford Univ, Dept Endocrinol Gerontol & Metab, Stanford, CA 94305 USA
[8] Univ Turin, Dept Internal Med, Div Endocrinol, Turin, Italy
[9] Dept Med, Div Endocrinol, Santiago De Compostela, Spain
[10] Complejo Hosp Santiago, Santiago De Compostela, Spain
[11] Univ Naples Federico II, Dept Mol & Clin Endocrinol & Oncol, Naples, Italy
[12] Erasmus MC, Dept Med, Rotterdam, Netherlands
[13] Univ Birmingham Edgbaston, Sch Med, Birmingham, W Midlands, England
[14] Cedars Sinai Med Ctr, Dept Endocrinol, Los Angeles, CA 90048 USA