R T Geirsson1, R M Busby-Earle. Show Affiliations » 1. Department of Obstetrics and Gynaecology, University of Edinburgh.
Abstract
Mesh: See more » AdultFemaleGestational AgeHumansMenstruationPregnancyUltrasonography, Prenatal
Year: 1991 PMID: 1998620 DOI: 10.1111/j.1471-0528.1991.tb10323.x
Source DB: PubMed Journal: Br J Obstet Gynaecol ISSN: 0306-5456