1. Queen Elizabeth Hospital Birmingham Birmingham UK
2. Department of Speech & Language Therapy The Royal Marsden NHS Foundation Trust London UK
3. Department of Surgery and Cancer Imperial College Healthcare NHS Trust London UK
4. National Centre for Airway ReconstructionImperial College Healthcare Trust London UK
5. Department of Otolaryngology and Head and Neck Cancer Speech and Swallowing Rehabilitation Stanford Cancer Center CA USA
6. Department of Speech and Language Therapy The Royal Marsden NHS Foundation Trust London UK
7. School of Health and Rehabilitation Sciences The University of Queensland Brisbane Qld. Australia
8. Imperial College Healthcare NHS Trust London UK
9. University College London Hospital NHS Foundation Trust London UK
10. University of Liverpool Liverpool UK
11. University of Birmingham Birmingham UK
12. Head and Neck Cancer U.K. Birmingham UK