title: Pregnancy of unknown viability or location: less is more in the majority of cases.
authors.affiliation: School of Clinical Sciences, University of Nottingham, Nottingham, UK. nick.raine-fenning@nottingham.ac.uk
authors.forename: Nick
authors.initials: N
authors.lastname: Raine-Fenning
authors.forename: Shyamaly
authors.initials: S
authors.lastname: Sur
authors.forename: Andrew W
authors.initials: AW
authors.lastname: Horne
authors.forename: Helen
authors.initials: H
authors.lastname: Wilkinson
authors.forename: Tom
authors.initials: T
authors.lastname: Bourne
mesh_terms: D005260:Female; D006801:Humans; D017410:Practice Guidelines as Topic; D011247:Pregnancy; D011256:Pregnancy Outcome; D011271:Pregnancy, Ectopic / Q000000981:diagnostic imaging*; D011296:Prenatal Diagnosis / Q000145:classification* / Q000379:methods*; D016216:Ultrasonography, Prenatal