1. St Helens and Knowsley Teaching Hospitals NHS Trust, Whiston Hospital, UK
2. North West Spinal Cord Injury Unit, Southport and Ormskirk Trust, UK
3. Department of Urology and Duke of Cornwall Spinal Treatment Centre, Salisbury NHS Foundation Trust, UK
4. Department of Urology, Michael Heal Unit, Mid Cheshire Hospital NHS Foundation Trust, Leighton Hospital, UK