1. University of Southampton Auditory Implant Service, Highfield, Southampton SO17 1BJ, UK
2. St. Thomas’ Hospital Hearing Implant Centre, London, UK
3. Nottingham Auditory Implant Programme, Nottingham, UK
4. Cardiff Paediatric Cochlear Implant Programme, London, UK
5. Emmeline Centre, Cambridge, UK
6. The Oxford Cochlear Implant Programme, London, UK
7. Hearing and Balance Centre, University of Southampton, Southampton, UK
8. West of England Paediatric Hearing Implant Programme, Bristol, UK
9. The Midlands Children's Hearing Implant Programme, Birmingham, UK
10. The Richard Ramsden Centre for Hearing Implants, Manchester, UK
11. St George's Hospital Auditory Implant Service, London, UK
12. Great Ormond Street Cochlear Implant Programme, London, UK
13. North East Cochlear Implant Programme, Middlesbrough, UK
14. Royal National Throat Nose and Ear Cochlear Implant Programme, London, UK
15. Belfast Regional Cochlear Implant Centre, Belfast, UK