1. Consorci Sanitari de l'Anoia, Igualada, Barcelona, Spain.
2. Endocrine, Metabolic and Bariatric Unit, Center of Excellence for the EAC-BC, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain.
3. Doctors Hospital Health System, Nassau, The Bahamas.
4. Research Institute against Digestive Cancer, IRCAD, Strasbourg University, Strasbourg, France.
5. General Surgery Department Unit, Center of Excellence for the EAC-BC, University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain.