1. GSK; Collegeville PA USA
2. GSK; Uxbridge UK
3. Backwell and Nailsea Medical Group; North Somerset UK
4. Department of Urology; Guy's and St Thomas' Hospital; London UK
5. West Middlesex University Hospital NHS Trust; Isleworth UK
6. Cambridge University Hospitals; Cambridge UK
7. Faculty of Health and Human Sciences; University of Hertfordshire; Hatfield UK