1. Neuroendocrine Unit, Massachusetts General Hospital and Department of Medicine, Harvard Medical School, Boston, Massachusetts
2. Endocrinology Department and Center for Translational Endocrinology (CETREN), School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
3. Academic Endocrine Unit, OCDEM, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Oxford, UK