1. Otology & Neurotology Group CTS495; Department of Genomic Medicine- Centro de Genómica e Investigación Oncológica - Pfizer/Universidad de Granada/Junta de Andalucía (GENYO); Granada Spain
2. Department of Otolaryngology; Hospital Universitario de Getafe; Getafe Spain
3. Department of Otolaryngology; San Raffaelle Scientific Institute; Milan Italy
4. Division of Otoneurology; Department of Otorhinolaryngology; Complejo Hospitalario Universitario de Badajoz; Badajoz Spain
5. Division of Otoneurology; Department of Otorhinolaryngology; Complexo Hospitalario Universitario; Santiago de Compostela Spain
6. Department of Otolaryngology; Clinica Universidad de Navarra; Pamplona Spain
7. Department of Otolaryngology; Complexo Hospitalario de Pontevedra; Pontevedra Spain
8. Department of Otolaryngology; Hospital de Poniente; El Ejido Almería Spain
9. Department of Otolaryngology; Hospital Universitario Salamanca; Salamanca Spain
10. Department of Otolaryngology; Hospital Miguel Servet; Zaragoza Spain
11. Department of Otorhinolaryngology; Hospital San Agustin; Linares Jaen Spain
12. Department of Otorhinolaryngology; Hospital Universitario La Fe; Valencia Spain
13. Department of Otorhinolaryngology; Hospital Costa del Sol; Marbella Malaga Spain
14. Department of Otolaryngology; Hospital General Universitario de Alicante; Alicante Spain
15. Department of Otolaryngology; Hospital Universitario de Gran Canaria Dr Negrin; Las Palmas Spain
16. Department of Otorhinolaryngology; Hospital Universitario de Cabueñes; Gijon Spain
17. Department of Otolaryngology; Instituto de Investigación Biosanitaria ibs.GRANADA; Complejo Hospitalario Universidad de Granada (CHUGRA); Granada Spain