[1] American University of Beirut,Faculty of Medicine
[2] University of Oxford,Oxford University Clinical Academic Graduate School, Medical Sciences Office
[3] Imperial College London,Department of Surgery and Cancer
[4] St Mary’s Hospital,Department of Surgery
[5] Sunderland Royal Hospital,undefined
[6] Turku University,undefined
[7] Gastro-Obeso-CIMO,undefined
[8] Pennington Biomedical Research Institute,undefined