1. Department of Otorhinolaryngology. Hospital Universitario Clínico San Cecilio Granada Spain
2. PhD Programme in Clinical Medicine and Public Health University of Granada Granada Spain
3. Department Otolaryngology Clinica Universitaria de Navarra Pamplona Spain
4. Autoinmune Disease Unit. Department of Medicine Hospital Universitario San Cecilio Granada Spain
5. Universidad de Granada Granada Spain
6. Department of Radiology. Hospital Universirario Virgen de las Nieves Granada Spain
7. Department of Otorhinolaryngology. Hospital Sanitas La Zarzuela & Hospital Universitario Fuenlabrada Universidad Rey Juan Carlos Madrid Spain