An evaluation of "talking signs" for the blind.
D000328:Adult; D000368:Aged; D001766:Blindness / Q000534:rehabilitation*; D004582:Electronics, Medical / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009949:Orientation; D012682:Sensory Aids; D013060:Speech; D014110:Touch