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  • Infant, Low Birth Weight

    

  • Pregnancy Outcome

    

  • Maternal Age

    

  • Infant, Premature

    

  • Ethnic Groups

    

  • Perinatal Mortality

    

  • Child Mortality

    

  • Maternal Welfare

    

  • Live Birth

    

  • Multivariate Analysis

    

  • Odds Ratio

    

  • Cohort Studies

    

  • Life Expectancy

    

  • Confidence Intervals

    

  • Regression Analysis

    

  • Poverty

    

  • Proportional Hazards Models

    

  • Health Policy

    

  • Age Factors

    

  • Cause of Death

    

  • Registries

    

• Living Beings

  • Infant, Newborn

    

  • Indians, North American

    

  • Multiple Birth Offspring

    

  • Hispanic Americans

    

  • African Americans

    

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• Physiology

  • Birth Weight

    

  • Gestational Age

    

  • Pregnancy

    

  • Pregnancy, Multiple

    

• Disorders

  • Fetal Death

    

  • Abortion, Criminal

    

  • Pregnancy, High-Risk

    

  • Premature Birth

    

  • Obstetric Labor, Premature

    

• Organizations

  • National Center for Health Statistics (U.S.)

    

• Objects

  • Birth Certificates

    

  • Electric Power Supplies

    

  • Coal

    

• Phenomena

  • Greenhouse Effect

    

  • Electricity

    

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• Procedures

  • Maternal Health Services

    

  • Delivery, Obstetric

    

• Activities & Behaviors

  • Maternal Behavior

    

  • Emigration and Immigration

    

  • Homicide

    

  • Medical Records

    

• Geographic Areas

  • Mexico