Communication for the handicapped: the hands say it all.
D002648:Child; D002675:Child, Preschool; D006233:Persons with Disabilities / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008369:Manual Communication; D008875:Middle Aged; D009633:Nonverbal Communication; D012046:Rehabilitation; D012813:Sign Language