[1] Univ Fed Rio de Janeiro, Hosp Univ Clementino Fraga Filho, Neuroendocrinol Res Ctr, Endocrine Sect, Rio De Janeiro, Brazil
[2] Univ Fed Rio de Janeiro, Hosp Univ Clementino Fraga Filho, Sch Med, Rio De Janeiro, Brazil
[3] Secretaria Estadual Saude Rio de Janeiro, Inst Estadual Cerebro Paulo Niemeyer, Neuroendocrine Sect, Rio De Janeiro, Brazil
[4] Hosp Fed Bonsucesso, Endocrine Unit, Rio De Janeiro, Brazil
[5] Queen Mary Univ London, Barts & London Sch Med, Ctr Endocrinol, Charterhouse Sq, London EC1A 6BQ, England