ISSN 1308-7649 • EISSN 2148-3817 Indexed in SCI EXPANDED Member of Vol. 14 • Issue 1 • April 2018 www.advancedotology.org The Journal of International Advanced Otology is fully sponsored and owned by European Academy of Otology & Neuro-Otology In Memoriam of Mirko Tos (Page 3-4)