1. David Geffen School of Medicine, Department of Medicine (Endocrinology) and Department of Molecular and Medical Pharmacology, University of California, Los Angeles, CA, USA
2. Molecular Cellular Integrative Physiology Interdepartmental Graduate Program, University of California, Los Angeles, CA, USA
3. Department of Cells and Tissues, Institut de Biologia Molecular de Barcelona, IBMB, CSIC, Barcelona, Spain