title: Task analysis of a complex assembly task by the retarded blind.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001766:Blindness / Q000534:rehabilitation*; D003638:Deafness / Q000534:rehabilitation; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013647:Task Performance and Analysis