1. Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
2. Sansum Diabetes Research Institute, Santa Barbara, CA 93105, USA
3. Department of Medicine, University of Colorado, Aurora, CO 80309, USA
4. Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA