1. Department of Otorhinolaryngology, Hospital La Paz, IdiPAZ Research Institute, 28046 Madrid, Spain
2. Biomedical Research Networking Centre on Rare Diseases (CIBERER), Institute of Health Carlos III (CIBERER-U761), 28029 Madrid, Spain
3. Department of Otorhinolaryngology, Hospital Infanta Leonor, 28031 Madrid, Spain