Hearing levels of adults by education, income, and occupation United States--1960-1962.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001299:Audiometry; D001309:Auditory Threshold; D004522:Educational Status; D005260:Female; D006309:Hearing; D006801:Humans; D007182:Income; D008297:Male; D008875:Middle Aged; D009790:Occupations; D014481:United States