1. Department of Colorectal Surgery, King's College Hospital NHS Foundation Trust, London, UK
2. Department of Surgery, Laikon General Hospital, National and Kapodistrian University, Athens, Greece
3. Metabolic Engineering and Bioinformatics, National Hellenic Research Foundation, Athens, Greece
4. Department of Gastroenterology, Iaso General Hospital, Athens, Greece
5. Department of Chemical Engineering, National Technical University of Athens, Greece
6. Surgery Clinic, Iaso General Hospital, Athens, Greece