1. Department of GU Medicine, Chalmers Sexual Health Clinic, Edinburgh
2. Department of Sexual Health, Wrexham Maelor Hospital, Wrexham
3. Department of GU Medicine, Stoke-on-Trent
4. Josephine Butler Centre for Sexual Health, Clayton Hospital, Wakefield
5. West Hertfordshire Hospitals NHS Trust, Watford General Hospital, Watford
6. St Stephen's Centre, Chelsea and Westminster, London, UK