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15. A comparison of LMP-based and ultrasound-based estimates of gestational age using linked California livebirth and prenatal screening records. Dietz PM, England LJ, Callaghan WM, Pearl M, Wier ML, Kharrazi M. Paediatr Perinat Epidemiol; 2007 Sep; 21 Suppl 2():62-71. PubMed ID: 17803619 [Abstract] [Full Text] [Related]
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