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;
3. College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, New York;
4. Department of Applied Mathematics and Statistics, Stony Brook University, Stony Brook, New York;
5. Division of Vascular Surgery, Department of Surgery, Stony Brook University Medical Center, Stony Brook, New York