DOI: 10.1055/s-00000009

American Journal of Perinatology

References

Martin JA, Hamilton BE, Osterman M, Curtin SC, Matthews T.
Births: final data for 2013. National vital statistics reports: from the Centers for Disease Control and Prevention, National Center for Health Statistics.

Natl Vital Statistics Syst 2015;
64 (01) 1-65

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