1. Darent Valley Hospital Medway Maritime Hospital, Darenth Wood Road, Dartford, DA2 8DA, UK
2. Medway Maritime Hospital, Gillingham, UK
3. University College London Hospitals Campero NHS Foundation Trust, London, UK
4. Darent Valley Hospital, Urology, Dartford, UK
5. Dartford and Gravesham NHS Trust, Dartford, UK