1 Gene Therapy for Hearing Impairment and Deafness, Department for Otolaryngology, Head and Neck Surgery, University Hospital Tübingen, Tübingen, Germany.
2 Telethon Institute of Genetics and Medicine, Pozzuoli 80078, Italy; Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy. Electronic address: trapani@tigem.it.