1. College of Health Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
2. Cambridge Hearing Group, University of Cambridge, Cambridge CB2 1TN, UK
3. Emmeline Centre, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, UK
4. Northern Medical Physics and Clinical Engineering, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle NE4 5NR, UK
5. Ear, Nose and Throat Surgery, University Hospitals Birmingham NHS Foundation Trust, Birmingham B13 8QY, UK