1. Bariatric and Metabolic Institute, Department of General Surgery, Cleveland Clinic, Cleveland, OH
2. Endocrinology and Metabolism Institute, Cleveland Clinic, Cleveland, OH
3. Bariatric and Metabolic Institute, Department of General Surgery, Cleveland Clinic Florida, Weston, FL
4. Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA
5. Department of Endocrinology, UZ Leuven, Leuven, Belgium