[1] Univ Granada, Otol & Neurotol Grp CTS495, Dept Genom Med, Ctr Genom & Oncol Res,Pfizer,Junta Andalucia GENy, PTS Avda Ilustrac 114, Granada 18016, Spain
[2] Johns Hopkins Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, Baltimore, MD 21205 USA
[3] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Otolaryngol Head & Neck Surg, Seoul, South Korea
[4] Washington Univ, Sch Med, Dept Otolaryngol Head & Neck Surg, St Louis, MO 63110 USA
[5] Lund Univ, Dept Otolaryngol, Lund, Sweden
[6] Azienda Osped Univ Senese, Otol & Skull Base Dept, Siena, Italy
[7] Johns Hopkins Univ, Sch Med, Dept Neurol, Baltimore, MD 21205 USA
[8] Ludwig Maximilians Univ Munchen, Dept Neurol, Munich, Germany
[9] Ludwig Maximilians Univ Munchen, German Ctr Vertigo & Balance Disorders, Munich, Germany
[10] Tokyo Med Univ, Dept Otolaryngol, Tokyo, Japan
[11] Ctr Hosp Emile Mayrisch, Dept Neurol, Esch An Der Alzette, Luxembourg
[12] Hosp Poniente, Dept Otolaryngol, El Ejido, Spain