1. European Interbalkan Medical Center, 10 Asklipiou Street, 55535 Pylaia, Greece
2. 3rd Surgical Department, University General Hospital of Thessaloniki “AHEPA”, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 1st St. Kiriakidi Street, 54621 Thessaloniki, Greece
3. Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
4. 1st Department of Internal Medicine, G. Papanikolaou General Hospital of Thessaloniki, 57010 Thessaloniki, Greece
5. Medical School, Faculty of Health Sciences, University of Ioannina, 45110 Ioannina, Greece
6. Pathology Department, Aristotle University of Thessaloniki, AHEPA University Hospital, 1st St. Kiriakidi Street, 54621 Thessaloniki, Greece