1. Bariatric and Metabolic Institute, Department of General Surgery, Cleveland Clinic, Cleveland, Ohio
2. Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
3. Kaiser Permanente Washington Health Research Institute, Seattle
4. Cleveland Clinic Coordinating Center for Clinical Research, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio
5. Department of Surgery, The Ohio State University Wexner Medical Center, Columbus