Ultrasound instead of last menstrual period as the basis of gestational age assignment

Authors

  • Dr R. T. Geirsson

    Corresponding author
    1. Department of Obstetrics and Gynaecology, University of Edinburgh, Centre for Reproductive Biology, 37 Chalmers Street, Edinburgh, UK
    • Department of Obstetrics and Gynecology, National University Hospital, 101 Reykjavik, Iceland
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