1. Vascular Unit, 1st University Surgical Department, Papageorgiou General Hospital, Aristotle University of Thessaloniki, 56403 Thessaloniki, Greece
2. Radiology Department, Papageorgiou General Hospital, 56403 Thessaloniki, Greece
3. Cardiothoracic Surgery Department, Papanikolaou General Hospital, 57010 Thessaloniki, Greece
4. 3rd University Department of Internal Medicine, Papageorgiou General Hospital, Aristotle University of Thessaloniki, 56403 Thessaloniki, Greece