1. Institute of Health and Society Newcastle University Newcastle upon Tyne UK
2. Speech and Language Therapy Department Sunderland Royal Hospital Sunderland UK
3. Speech and Language Therapy Department NHS Lothian Western General Hospital Edinburgh UK
4. Speech and Language Therapy Department Ninewells Hospital Dundee UK
5. Nursing, Midwifery, Allied Health Professional Research Unit University of Stirling Stirling UK
6. Department of Otolaryngology, Head and Neck Surgery Imperial College Healthcare NHS Trust London UK
7. Division of Surgery, Department of Surgery and Cancer Imperial College London UK
8. Department of Speech and Language Therapy Royal Marsden NHS Foundation Trust London UK
9. Department of Nursing Imperial College Healthcare NHS Trust London UK