1. Neuroendocrine Unit, Division of Endocrinology and Metabolism, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, SP 05403-010, Brazil
2. Bone Metabolism Laboratory, Rheumatology Division, Hospital das Clinicas, University of São Paulo Medical School, São Paulo, SP 01246903, Brazil
3. Rheumatology Division Hospital das Clinicas HCFMUSP, Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, SP 05403-010, Brazil
4. Laboratorio de Endocrinologia Celular e Molecular/LIM25, Disciplina de Endocrinologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP 01246903, Brasil
5. Diseases Unit Osteometabolic, Endocrinology Service, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HC-FMUSP), São Paulo, SP 05403-010, Brazil
6. Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA