1. Hearing Systems Section, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
2. Faculty of Health Sciences, Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
3. Research Unit for ORL – Head & Neck Surgery and Audiology, Odense University Hospital, Odense, Denmark
4. Institute of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark