1. Division of Geriatric Medicine; University of Alberta; Edmonton Alberta Canada
2. Department of Obstetrics and Gynaecology; St Mary's Hospital; Imperial College; London UK
3. Private Urological Practice; Frankfurt am Main Germany
4. Department of Pharmacology; Johannes Gutenberg University; Mainz Germany
5. Department of Urology; Hannover Medical School; Hannover Germany
6. Pfizer Ltd; Walton Oaks UK
7. Pfizer France; Paris France
8. OsterMed Ltd; Birmingham UK