1. NW Center for Voice & Swallowing, Department of Otolaryngology-Head & Neck Surgery, Oregon Health & Science University, Portland
2. Institute on Aging, College of Urban and Public Affairs, Portland State University, OR
3. National Center for Rehabilitative Auditory Research, Portland VA Medical Center, OR
4. Department of Sociology, Portland State University, OR
5. Department of Psychology, Portland State University, OR