Affiliation: | 1. Unit of Audiology, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden,;2. Armed Forces Centre for Defense Medicine, Sweden,;3. Department of Audiology and Neurotology, Karolinska University Hospital, Stockholm, Sweden, and;4. Audiology Department, Habilitering &5. H?lsa, Region V?stra G?taland, Sweden |