Health statistics from U.S. National Health Survey series. B-40. Disability days due to injury, United States, July 1959-June 1961, statistics on disability days due to injury by age, sex, residence, geographic region, family income, usual activity status, race, and type and place of accident, based on data collected in household interviews during July 1959-June 1961; [prepared by Geraldine A. Gleeson].

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