1. Division of Endocrinology, Metabolism and Diabetes, University of Colorado School of Medicine, Aurora, Colorado
2. Division of Endocrinology, Rocky Mountain Veterans Affairs Medical Center, Aurora, Colorado
3. Division of Cardiology, Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins Medical Institutions, Baltimore, Maryland
4. Department of Radiology and Neuroradiology, Charité, Berlin, Germany