DOI:
10.1055/s-00028422
Ultrasound International Open
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References
Davidoff MJ, Dias T, Damus K, Russell R, Bettegowda VR, Dolan S et al.
Changes in the gestational age distribution among U.S. singleton births: impact on rates of late preterm birth, 1992 to 2002.
Semin Perinatol 2006;
30: 8-15
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