1. The Rehabilitation Act of 1973, as amended;Anonymous,1973
2. Augmentative and alternative communication: clinical decision making for persons with ALS;Ball;Perspect Augment Altern Commun,2002
3. Augmentative and alternative communication: management of severe communication disorders in children and adults;Beukelman,1998
4. An overview of assistive technology for persons with multiple sclerosis;Blake;J Rehabil Res Dev,2002
5. Prediction of future speech performance among potential users of AAC systems: a survey;Bodine;Augment Altern Commun,1991