[1] Univ Milan, Dept Clin Sci & Community Hlth, Milan, Italy
[2] IRCCS Ist Auxol Italiano, Div Endocrine & Metab Dis, Milan, Italy
[3] IRCCS Ist Auxol Italiano, Lab Endocrine & Metab Res, Milan, Italy
[4] Univ Modena & Reggio Emilia, Dept Biomed Metab & Neural Sci, Unit Endocrinol, Via P Giardini 1355, I-41126 Modena, Italy
[5] NOCSAE, Azienda USL Modena, Via P Giardini 1355, I-41126 Modena, Italy
[6] Univ Naples 2, Dept Cardiothorac & Resp Sci, Naples, Italy
[7] Polytech Univ Marche, Umberto Hosp 1, Dept Clin & Mol Sci, Div Endocrinol, Via Conca 71, I-60126 Ancona, Italy
[8] Univ Roma Tor Vergata, Dept Syst Med, Rome, Italy
[9] Univ Padua, Dept Med, Unit Androl & Reprod Med, Padua, Italy