1. Section of Minimally Invasive Surgery, Washington University School of Medicine at St Louis, St Louis, Missouri
2. Department of General Surgery, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania
3. Department of Surgery, Southern Illinois University School of Medicine, Springfield
4. Department of Surgery, University of Rochester Medical Center, Rochester, New York
5. Division of Bariatric, Foregut, and Advanced Gastrointestinal Surgery, Department of Surgery, Stony Brook University Medical Center, Stony Brook, New York