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200 10$aBlood pressure levels of children 6-11 years : relationship to age, sex, race, and socioeconomic status, United States : blood pressure measurements of children 6-11 years of age in the United States, 1963-65, are presented and discussed by age, sex, rac
210   $aRockville, Md$cU.S. Department of Health, Education, and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics
517   $aBlood pressure levels of children 6-11 years 
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996   $aBlood pressure levels of children 6-11 years : relationship to age, sex, race, and socioeconomic status, United States : blood pressure measurements of children 6-11 years of age in the United States, 1963-65, are presented and discussed by age, sex, rac$93331851
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