1. Department of Vascular and General Surgery, University Hospital North Staffordshire, Stoke-on-Trent - UK
2. The Medical School, Keele University, Stoke-on-Trent - UK
3. Department of Radiology, University Hospital North Staffordshire, Stoke-on-Trent - UK
4. Department of Nephrology, University Hospital North Staffordshire, Stoke-on-Trent - UK