1. Obesity Research Center (B.L., N.S., B.B., S.A., M.B., B.O.) St. Luke’s/Roosevelt Hospital Center, Columbia University College of Physicians and Surgeons, New York, New York 10025;
2. Bariatric Division (J.T., J.M.), St. Luke’s/Roosevelt Hospital Center, Columbia University College of Physicians and Surgeons, New York, New York 10025;
3. Clinical Endocrinology Branch (K.I.R.), National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892