1. Department of Vascular Surgery, University Hospital of Patras, Patras, Greece
2. Department of Anesthesiology, University Hospital of Patras, Patras, Greece
3. Department of Radiology, University Hospital of Patras, Patras, Greece
4. Department of Cardiology, University Hospital of Patras, Patras, Greece
5. Division of Neuromuscular Disorders, Department of Neurology, University Hospital of Patras, Patras, Greece