1. a Department of Primary Care and Population Sciences , Royal Free University College Medical School , London , UK
2. b Brighton & Sussex University Hospitals NHS Trust , Brighton , UK
3. c King's College London School of Medicine , Palliative Care, Policy and Rehabilitation , London , UK
4. d Royal Free Hospital , London , UK
5. e Mortimer Market , London , UK
6. f Brighton and Hove NHS Trust , UK
7. g Archway Sexual Health Clinic , London , UK
8. h Homerton University Hospital NHS Foundation Trust , London , UK