1. Postgraduate Program in Hepatobiliary/Pancreatic Surgery, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
2. 2nd Department of Surgery and Laboratory of Experimental Surgery, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
3. School of Health Sciences, Department of Pharmacy, National and Kapodistrian University of Athens, Greece
4. Laboratory of Histology-Embryology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
5. Department of Experimental Surgery, Bioresearch Foundation of the Academy of Athens, Athens, Greece
6. Laboratory of Biochemistry, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece