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Cover Image for Gestational length assignment based on last menstrual period, first trimester crown-rump length, ovulation, and implantation timing. View Article
Gestational length assignment based on last menstrual period, first trimester crown-rump length, ovulation, and implantation timing.
Amita A Mahendru, Charlotte S Wilhelm-Benartzi, Ian B Wilkinson, Carmel M McEniery, Sarah Johnson, Christoph Lees
Nov 22, 2017
PURPOSE: Understanding the natural length of human pregnancy is central to clinical care. However, variability in the reference methods to assign gestational age (GA) confound our understanding of pregnancy length. Assignation...
CRL Estimated date of delivery Pregnancy dating ULTRASOUND Adult Crown-Rump Length Embryo Implantation Female Gestational Age Humans menstruation Ovulation Pregnancy Pregnancy Trimester First Prospective Studies Ultrasonography Prenatal
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