1. Institute for Head and Neck Studies and Education (InHANSE) University of Birmingham Birmingham UK
2. University of Warwick Coventry UK
3. Department of Head and Neck Surgery, The Greater Poland Cancer Centre Poznan University of Medical Sciences Poznan Poland
4. Section of Otolaryngology – Head and Neck Surgery University of Perugia Perugia Italy
5. Vascular Surgery Unit, Department of Cardiovascular Sciences Policlinico Universitario A. Gemelli Foundation, Università Cattolica del S. Cuore Rome Italy
6. Unit of Otorhinolaryngology – Head and Neck Surgery University of Brescia Brescia Italy
7. Department of Otolaryngology Ospedale S. Chiara Trento Italy
8. Clinic of Vascular and Endovascular Surgery Padova University School of Medicine Padova Italy
9. Department of Otolaryngology – Head and Neck Surgery 5th Military Hospital with Polyclinic Krakow Poland
10. Department of Otolaryngology – Head and Neck Surgery Hacettepe University School of Medicine Ankara Turkey
11. Department of Vascular and Endovascular Surgery, Medical School Pontificia Universidad Católica de Chile Santiago Chile
12. Department of Endocrinology University Hospitals Birmingham Foundation Trust Birmingham UK
13. Department of Vascular Surgery University Hospitals Birmingham Foundation Trust Birmingham UK