1. Department of Otorhinolaryngology-Head and Neck Surgery, Inselspital, University Hospital and University of Bern, Switzerland
2. Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
3. Image-Guided Therapy, ARTORG Center for Biomedical Research, University of Bern, Switzerland
4. Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine, South Valley University, Qena, Egypt
5. Hearing Research Laboratory, ARTORG Center for Biomedical Engineering Research, University of Bern, Switzerland