1. St John’s Institute of Dermatology Guy’s and St Thomas’ Hospitals NHS Foundation Trust , London , UK
2. St John’s Institute of Department of Colorectal Surgery, Guy’s and St Thomas’ Hospitals NHS Foundation Trust , London , UK
3. Department of Urology, St George’s University Hopistals NHS Trust , London , UK
4. Dematopathology, Guy’s and St Thomas’ Hospitals NHS Foundation Trust , London , UK