1. School of Chemistry, University of Bristol, Bristol, United Kingdom
2. Department of Speech and Language Therapy (ENT), Royal National Ear, Nose and Throat and Eastman Dental Hospitals, University College London Hospitals NHS Foundation Trust, London, United Kingdom
3. Department of Ear, Nose and Throat Surgery, Lewisham and Greenwich NHS Trust, London, United Kingdom
4. Department of Respiratory Medicine, Royal Brompton Hospital, London, United Kingdom
5. Department of Respiratory Medicine, Chelsea & Westminster Hospital, London, United Kingdom
6. National Heart and Lung Institute, Guy Scadding Building, Imperial College London, London, United Kingdom
7. School of Education, University of Bristol, Bristol, United Kingdom
8. Department of Bioengineering, Imperial College London, London, United Kingdom
9. Fortius Clinic, London, United Kingdom
10. Ear, Nose and Throat Department, Wexham Park Hospital, Slough, United Kingdom