1. Mark and Mary Stevens Institute for Neuroimaging and Informatics, Keck School of Medicine of USC University of Southern California Los Angeles California USA
2. Division of Endocrinology, Department of Medicine, Keck School of Medicine University of Southern California Los Angeles California USA
3. Diabetes and Obesity Research Institute, Keck School of Medicine University of Southern California Los Angeles California USA
4. Department of Research and Evaluation Kaiser Permanente Southern California Pasadena California USA
5. Department of Neurology Keck School of Medicine of the University of Southern California Los Angeles California USA