1. Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
2. Department of Medicine, King Saud University, Riyadh, Saudi Arabia
3. Department of Medicine, Geriatric Medicine Division, University of British Columbia, Vancouver, Canada
4. Manchester Centre for Audiology and Deafness, The University of Manchester, Manchester, UK
5. Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
6. Department of Psychology, Lancaster University, Lancaster, UK