1. VA RR&D National Center for Rehabilitative Auditory Research (NCRAR), Veterans Affairs Portland Health Care System, Portland, Oregon
2. Department of Otolaryngology/Head and Neck Surgery, Oregon Health and Science University, Portland, Oregon
3. Durham VA Health Care System, Durham, North Carolina
4. Department of Head and Neck Surgery and Communication Sciences, Duke University School of Medicine, Durham, North Carolina
5. School of Public Health, Oregon Health and Science University, Portland, Oregon
6. Center to Improve Veteran Involvement in Care, Veterans Affairs Portland Health Care System, Portland, Oregon