1. Department of Endocrinology, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
2. Endocrine Physiology Laboratory, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
3. Department of Histology and Embryology, Roberto Alcântara Gomes Institute of Biology, University of State of Rio de Janeiro, Rio de Janeiro, Brazil.