1. Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN 37232-8700
2. Department of Special Education, Peabody College of Vanderbilt University, Nashville, TN 37203.
3. Department of Applied Arts and Business, Mohawk College, Brant-Elgin Campus, Brantford, Ontario, Canada N3T 5V2.
4. Department of Blind Rehabilitation, Western Michigan University, Kalamazoo, Ml 49008.
5. Department of Hearing and Speech Sciences, Vanderbilt University.