@misc{indiciae0b71fe592f97, title = {A versatile speech output communication aid.}, author = {A L Evans and R A Gowdie and D Keating and D C Smith and D J Wyper and E Cunningham}, doi = {10.3109/03091908509032603}, url = {https://pubmed.ncbi.nlm.nih.gov/2931525/}, note = {Source identifier: 2931525} }