title: A lightspot operated typewriter for severely physically handicapped patients.
mesh_terms: D000328:Adult; D003142:Communication; D003626:Data Display; D006233:Persons with Disabilities; D005260:Female; D006801:Humans; D008328:Man-Machine Systems; D011327:Printing; D011782:Quadriplegia / Q000534:rehabilitation*; D014956:Writing