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Hemoglobin and hematocrit values are higher and prevalence of anemia is lower in the post–folic acid fortification period than in the pre–folic acid fortification period in US adults

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Correlates of Anemia in American Blacks and Whites: The REGARDS Renal Ancillary Study

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Trends in the postfortification prevalence of spina bifida and anencephaly in the United States

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Clinical Utility of Folic Acid Testing for Patients with Anemia or Dementia

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