Health statistics from U.S. National Health Survey series. B-41. Persons injured while at work, United States. July 1959-June 1961, statistics on incidence of persons injured while at work and associated disability days by place and type of accident, age, sex, residence, geographic region, family income, and education of family head, based on data collected in household interviews during July 1959-June 1961: [prepared by Charles S. Wilder].

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