1. King Abdullah Ear Specialist Center (KAESC), College of Medicine, ORL Department, King Saud University, Riyadh, Saudi Arabia
2. King Fahad specialized Hospital-Tabuk, Ministry of Health, Saudi Arabia
3. Research Department, MED-EL GmbH, Riyadh, Saudi Arabia
4. MED-EL, Innsbruck, Austria
5. Faculty of Medicine and Health Sciences, Department of Translational Neurosciences, University of Antwerp, Antwerp, Belgium