1. Yorkshire Auditory Implant Service, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
2. Audiology Department, Betsi Cadwaladr University Health Board, North Wales, UK
3. University of Queensland Centre for Hearing Research (CHEAR), School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
4. Manchester Centre for Audiology and Deafness, University of Manchester, Manchester, UK