Hearing levels of adults. By education, income, and occupation. United States-1960-1962.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001299:Audiometry; D001309:Auditory Threshold; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D012959:Socioeconomic Factors; D014481:United States