1. Department of Vascular Surgery, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece
2. Department of Radiotherapy, University Hospital of Larissa, Larissa, Greece
3. School of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
4. Department of Vascular Surgery, University Hospital of Larissa, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece