[1] Hannover Med Sch, Inst Audioneurotechnol, D-30625 Hannover, Germany
[2] Hannover Med Sch, Dept Expt Otol Ear Nose & Throat Clin, D-30625 Hannover, Germany
[3] Univ Texas Dallas, Sch Behav & Brain Sci, Dallas, TX 75230 USA
[4] Natl Inst Hlth Res Nottingham, Natl Biomed Res Unit Hearing, Nottingham, England
[5] Nottingham Univ Hosp Natl Hlth Serv Trust, Queens Med Ctr, Dept Otolaryngol, Nottingham, England