1. Department of Physiology Medical School of National and Kapodistrian University of Athens Athens Greece
2. Department of Clinical Therapeutics ‘Alexandra’ General Hospital of Athens Medical School of National and Kapodistrian University of Athens Athens Greece
3. Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico Division of Gastroenterology and Hepatology CRC ‘A. M. and A. Migliavacca’ Center for Liver Disease Milan Italy
4. 1st Department of Internal Medicine General Hospital of Athens ‘Laiko’ Medical School of National and Kapodistrian University of Athens Athens Greece
5. Department of Gastroenterology General Hospital of Athens ‘Laiko’ Medical School of National and Kapodistrian University of Athens Athens Greece