1. Department of Medicine (V.S.B., J.C., S.M.), Cedars-Sinai Medical Center, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California 90048
2. Department of Medicine (L.K.), University of Florida, Gainesville, Florida 32610
3. Division of Endocrinology (S.P.), Medical Center, University of Duisburg-Essen, 47048 Duisburg, Germany
4. Department of Neurosurgery and Division of Metabolism, Endocrinology, and Diabetes (A.B.), University of Michigan Medical Center, Ann Arbor, Michigan 48105