1. Larry L. Hillblom Islet Research Center, University of California, Los Angeles, David Geffen School of Medicine, Los Angeles, CA, USA
2. Department of Pharmacology and Brehm Diabetes Research Center, University of Michigan, Ann Arbor, MI, USA
3. Division of Endocrinology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
4. Department of Molecular and Medical Pharmacology, Crump Institute for Molecular Imaging, University of California, Los Angeles, David Geffen School of Medicine, Los Angeles, CA, USA; UCLA Metabolomics Center, University of California, Los Angeles, Los Angeles, CA, USA
5. Jonsson Comprehensive Cancer Center, University of California, Los Angeles, David Geffen School of Medicine, Los Angeles, CA, USA