National Center for Health Statistics

Births: Final data for 2019. National vital statistics reports; vol 70 no 2 (PDF). National Center for Health Statistics. [28 August 2021]. （原始内容

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Paediatrics and Child Health ACSA-CAAH Use of Emergency Contraception Among Women Aged 15-44, United States, 2006-2010 National Center for Health Statistics

Center） 国家推进转化科学中心（英语：National Center for Advancing Translational Sciences） 国家补充和综合健康中心（英语：National Center for Complementary and Integrative Health）

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