Health statistics from U.S. National Health Survey series. B-38. Volume of X-ray visits, United States, July 1960-June 1961. statistics on volume of medical and dental X-ray visits, by area of body X-rayed, place of X-ray, type of X-ray, age, sex, race, residence, geographic region, family income, and education, based on data collected in household interviews during July 1960-June 1961: [prepared by Charles S. Wilder).

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