Comparison of pregnancy dating by last menstrual period, ultrasound scanning, and their combination

David A. Savitz(Brown University), Amy H. Herring(University of North Carolina at Chapel Hill), John M. Thorp(George Washington University), James W. Terry(University of North Carolina at Chapel Hill), Nancy Dole(University of North Carolina at Chapel Hill), Anna Maria Siega‐Riz(University of Massachusetts Amherst)
American Journal of Obstetrics and Gynecology
December 1, 2002
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