1 Department of General and Digestive Surgery, Bariatric and Metabolic Surgery Unit, Bellvitge University Hospital, University of Barcelona, Barcelona, Spain. clazzara@bellvitgehospital.cat.
2 Department of General and Digestive Surgery, Bariatric and Metabolic Surgery Unit, Bellvitge University Hospital, University of Barcelona, Barcelona, Spain.
3 Department of Radiology, Vascular and Interventional Radiology Unit, Bellvitge University Hospital, University of Barcelona, Barcelona, Spain.