1 Department of Gastroenterology, Medical School, University Hospital of Heraklion, University of Crete, P.O. BOX 1352, 71110, Heraklion, Crete, Greece. eirinith25@yahoo.gr.
2 Department of Gastroenterology, Medical School, University Hospital of Heraklion, University of Crete, P.O. BOX 1352, 71110, Heraklion, Crete, Greece.
3 Department of Basic Medical Sciences, Laboratory of Biology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece.
4 Department of Gastroenterology, Medical School, University Hospital of Heraklion, University of Crete, P.O. BOX 1352, 71110, Heraklion, Crete, Greece. koutroui@uoc.gr.