1. Department of Vascular Surgery, General Hospital “Georgios Gennimatas,” Athens, Greece
2. Second Department of Internal Medicine, papanasnikos@ yahoo.gr
3. Department of Vascular Surgery, General Hospital “Georgios Gennimatas,” Athens, Greece, Department of Vascular Surgery
4. Department of Vascular Surgery
5. Department of Anaesthesiology, Democritus University, Alexndroupolis, Greece