Affiliation: | 1. Geisinger Obesity Research Institute, Geisinger Clinic, , Danville, Pennsylvania, USA;2. Weis Center for Research, Geisinger Clinic, , Danville, Pennsylvania, USA;3. Department of Surgery, Geisinger Medical Center, , Danville, Pennsylvania, USA;4. Department of Surgery, St. Francis Medical Center, , Trenton, New Jersey, USA;5. Penn State Institute for Personalized Medicine, , Hershey, Pennsylvania, USA |