1. Institute for Diabetes and Obesity; Helmholtz Centre for Health and Environment and Technische Universität München; Munich Germany
2. Division of Endocrinology; Diabetes and Metabolism; Department of Medicine; Metabolic Diseases Institute, University of Cincinnati; Cincinnati Ohio
3. Division of Metabolism; Endocrinology and Nutrition; Diabetes and Obesity Center of Excellence; University of Washington; Seattle Washington
4. Department of Physiology; Georgia Health Sciences University; Georgia