1. Division of Bariatric, Foregut and Advanced Gastrointestinal Surgery, Department of Surgery, Stony Brook University Medical Center, Stony Brook, New York;
2. Department of Family, Population and Preventive Medicine, Stony Brook University Medical Center, Stony Brook, New York; and
3. Minimally Invasive Surgical Services, Department of Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts