Electrophysiological measurements with electrode types of different perimodiolar properties and the same cochlear implant electronics – a retrospective comparison study - A. Perenyi; F. Toth; B. Dimak; R. Nagy; P. Schoerg; J. Jori; J. G. Kiss; G. Sprinzl; M. Csanady; L. Rovo (Journal of Otolaryngology - Head and Neck Surgery)