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"Infant Mortality: What Is CDC Doing?". Infant Mortality | Maternal and Infant Health | Reproductive Health |. Centers for Disease Control and Prevention. 2019-06-15 tarixində arxivləşdirilib. İstifadə tarixi: 2017-03-07.
"Infant Mortality". Maternal and Infant Health | Reproductive Health. Centers for Disease Control and Prevention. 2020-04-01 tarixində arxivləşdirilib. İstifadə tarixi: 2017-03-07.